Td5 V8

[TheEntertainer]

Don’t [emoji23], upgraded the maf on my td5 and it seems it’s upgraded the engine to a V8.. well at least fuel consumption wise. Getting loads of power… but the EGT on the madman ems3 peaks at 720 with only the smallest inclines. I’ll take a recording on the nanocom tomorrow. Has any one experienced this new maf with extreamly high fuel consumption @ 6kl per L.
Thanks all

[shack]

Don’t [emoji23], upgraded the maf on my td5 and it seems it’s upgraded the engine to a V8.. well at least fuel consumption wise. Getting loads of power… but the EGT on the madman ems3 peaks at 720 with only the smallest inclines. I’ll take a recording on the nanocom tomorrow. Has any one experienced this new maf with extreamly high fuel consumption @ 6kl per L.
Thanks allNo, but if the MAF over reads it will then overfuel on acceleration, as you said the log will help decipher.

What MAF did you fit?

Anything except genuine or VDO are terrible in my experience.

[PhilipA]

I cannot see how a MAF can do that.
I would be looking at your wastegate thread unwinding and giving low boost=high EGTs.
As I was driving back from Wodonga with my new van , I suddenly saw the EGT gauge looking high and the boost low, and that is what happened. Took me several minutes to diagnose then all well again.
Another reason could be the handbrake dragging or caliper frozen.
Regards PhilipA

[shack]

I cannot see how a MAF can do that.

Absolutely it can, if the MAF is not reading correctly, the AFR will be totally messed up.

Probably 90% of failed MAF's I see under read, but I think I have had one over read.

You will get better performance with an over reader, but also smoke and high EGT.


This only applies to EU3 though.

[PhilipA]

Absolutely it can, if the MAF is not reading correctly, the AFR will be totally messed up.
I had an over reader and it did not do that.
What it did was revert to zero at high load high revs and caused a big miss and dropout.
Regards PhilipA

[shack]

I had an over reader and it did not do that.
What it did was revert to zero at high load high revs and caused a big miss and dropout.
Regards PhilipAA MAF can fail, but the results can be vastly different to another failed MAF.

For instance, in your case I'd take a punt that it had exceeded the stock 710kg/hr reading, then it would read zero, The ECU would fall back to speed density method, you'd get a power glitch and be on your way again.

The other way would be that it could be over or under reading outside of the error checking routine limits in the mapping - not to be confused with the kg/hr limit.

So for instance it could be reading over about 1600mg/stroke at a certain rev range, the ECU will again drop back to speed density, you will get a power glitch and be on your way.

I've had cheap(and some not so cheap) MAFS here that will under read at idle when air temp is low, but then be ok through the mid rev range or when the air temp rises.

This will give you a very very laggy experience off the line, but may be ok when cruising.

The one the OP has may be over reading through mid range flow levels, but then flattening off up high, which will avoid the fuelling method OOR changeover glitch, but still provide smoke and high EGT down lower.

That's why running anything except a genuine or VDO MAF is fraught with issues.

I know fery will say "Genuine only" and I won't argue with him on that, he has probably looked into it much more than I, but I have found the VDO to be at the very least quite serviceable.

It would be interesting to have a new genuine, and VDO and test side by side, but it would take a lot of time and logging.



Cheers
James

[shack]

I'll have a bit more time shortly and I'll post up a comparison of some different MAF's I have laying around, and also the fuelling consequences of each.

[TheEntertainer]

Hi all,
Just back from the property, don't have mobile reception there. Below is heading up a hill with a trailer. I did forget to mention that I've removed the silencer box and replace the mid section with a straight though. The MAF I bought from TR spares and is a VDO sensor. By the time I got to line 2571 or a road speed of 97 down from 103 the EGT was reading 700, I have the ems 3 set at 700 so I started to back of on fuel to keep the temp under 700.
snippit below

[TheEntertainer]

Engine speed (rpm)
Road speed
Coolant temp. (C)
Turbo pres. (kPa)
Battery volt. (V)
Ambient pres. (kPa)
Air flow (g/s)
Air inlet temp. (C)
Fuel temp. (C)
Cyl. 1
Cyl. 2
Cyl. 3
Cyl. 4
Cyl. 5
Accel. track 1 (V)
Accel. track 2 (V)
Accel. track 3 (V)
Accel. supply (V)
EGR inlet (%)
EGR mod. (%)
Idle speed error
Wastegate mod.(%)




2480
103
89.5
159.8
13.78
93.8
303.2
27.6
71.8
-2
0
7
-5
0
2.834
2.285
2.579
5.015
38.68
0
1525
38.5


2442
102
90
155.8
13.91
93.8
289.8
27.8
68.5
-2
2
3
-2
4
2.773
2.341
2.658
5.01
39.31
0
1490
39.2


2407
100
90
154.9
13.97
94.47
289.8
27.8
68.5
-5
1
3
-8
5
2.773
2.346
2.658
5.01
39.93
0
1445
39.9


2356
97
90
154.9
13.94
94.06
283.8
28.1
68.5
0
1
-1
-4
-2
2.773
2.341
2.663
5.01
40
0
1414
40


2329
97
90.3
156
13.88
93.8
279.2
28.2
68.6
2
1
1
-3
2
2.796
2.319
2.628
5.01
40
0
1368
40


2288
95
90.3
155.8
13.91
93.8
284.7
28.5
68.5
0
4
1
-3
-3
2.806
2.306
2.614
5.01
40
0
1333
40


2253
94
90.3
152
13.94
94.06
272.2
28.5
68.5
-4
2
3
-1
-1
2.757
2.352
2.678
5.01
40
0
1305
40


2224
92
90.3
153.3
13.91
93.94
264.2
28.6
68.5
-1
4
5
-3
-5
2.78
2.335
2.648
5.01
40
0
1272
40


2201
91
90.6
153.7
13.94
94.33
269.8
28.7
68.5
2
2
3
-2
-3
2.78
2.335
2.653
5.01
40
0
1257
40


2173
90
90.6
153.1
13.94
93.94
258.5
28.7
68.5
1
-4
5
-2
-3
2.773
2.341
2.653
5.01
40
0
1227
40


2145
90
91
152.6
13.94
93.8
252.6
28.8
68.5
-1
-1
6
-2
-2
2.773
2.341
2.658
5.01
40
0
1201
40


2133
89
91
153.4
13.94
93.8
252.6
29
68.5
-2
0
4
2
-4
2.773
2.341
2.658
5.01
40
0
1182
40


2107
88
91
152.8
13.72
94.06
253.5
29.1
68.5
0
0
2
-2
-3
2.773
2.341
2.658
5.01
40
0
1168
40


2088
86
91
152.6
13.97
93.94
249.8
29.1
68.5
-1
0
5
-2
2
2.773
2.341
2.658
5.015
40
0
1151
40


2083
86
91.5
152.8
13.91
93.94
251.3
29.2
68.5
1
-1
2
-3
1
2.773
2.341
2.658
5.01
40
0
1136
40


2064
85
91.5
152.6
13.94
93.8
246.3
29.2
68.5
-1
-1
1
0
0
2.78
2.335
2.653
5.01
40
0
1130
40


2056
85
91.5
153.7
13.91
94.06
249.6
29.2
68.5
-1
-1
4
1
-3
2.871
2.25
2.53
5.01
40
0
1111
40


2045
84
91.9
158.4
13.94
94.06
253.5
29.3
68.5
-2
-1
6
-4
-1
2.871
2.25
2.53
5.01
40
0
1108
40


2047
84
91.9
158.1
13.78
93.54
250.1
29.5
68.5
-3
3
5
1
-2
2.865
2.25
2.53
5.01
40
0
1104
40


2041
84
91.9
157.8
13.94
93.94
249.3
29.5
68.5
2
6
3
-3
-2
2.871
2.244
2.526
5.01
40
0
1101
40


2045
85
91.9
157.5
13.85
93.8
255
29.7
68.5
1
-1
1
0
-5
2.865
2.25
2.536
5.01
40
0
1107
40


2041
84
91.5
145.4
13.75
94.06
220.5
29.7
68.3
-4
3
0
-1
-1
2.246
2.852
3.367
5.015
40
0
1093
39.84


2028
84
91.9
139.5
13.56
93.8
224.3
29.7
68.4
1
0
3
-3
-3
2.769
2.346
2.668
5.01
40
0
1094
40


2028
84
91.9
153.5
13.94
93.94
247.1
29.7
68.5
-2
2
6
-2
-4
2.849
2.267
2.561
5.01
40
0
1090
40


2036
84
92.1
155.7
13.91
93.94
249.3
29.7
68.5
-1
-1
2
0
-2
2.849
2.267
2.54
5.015
40
0
1092
40


2040
84
92.1
153.7
13.94
93.68
246.3
29.7
68.5
0
0
2
0
-4
2.806
2.306
2.614
5.01
40
0
1101
40


2050
84
92.1
152
13.94
93.68
243.8
29.8
68.5
0
1
2
0
-2
2.742
2.375
2.701
5.01
40
0
1107
40


2052
85
92.1
149.9
13.91
93.68
242.3
29.8
68.3
0
0
1
0
-3
2.742
2.369
2.701
5.01
40
0
1115
40


2068
85
92.5
149.9
13.91
94.06
242
30.1
68.3
2
1
5
-3
-5
2.742
2.369
2.701
5.015
40
0
1129
40


2069
86
92.5
144.7
13.88
93.8
232.6
29.8
68.3
0
0
3
-1
-1
2.661
2.454
2.815
5.01
40
0
1139
40


2079
86
92.5
147
13.94
94.06
242.8
29.8
68.6
2
2
-1
1
-1
2.72
2.391
2.732
5.01
40
0
1140
40


2085
86
92.3
140.3
13.5
93.94
222.6
30.1
68.3
-1
-1
2
-1
0
2.354
2.75
3.224
5.01
40
0
1147
40


2094
88
92.5
132.8
13.94
94.19
215.8
30.1
68.3
1
-1
0
1
-2
2.461
2.648
3.084
5.01
40
0
1155
40


2102
86
93
137.1
13.94
94.06
229.3
30
68.3
-1
0
4
1
-3
2.569
2.539
2.937
5.01
40
0
1171
40

[shack]

Could you just post the CSV as an attachment?

[TheEntertainer]

I've cut the csv down, thanks for taking a look.

179254
Could you just post the CSV as an attachment?

ps, what is the interval of the readings on the nanocom in seconds?

[shack]

I've cut the csv down, thanks for taking a look.

179254

ps, what is the interval of the readings on the nanocom in seconds?I think it's 1.2 seconds.

That is an unusual log, can you check that all of the intercooler hoses are on?

[TheEntertainer]

Will check when I get home a bit later today. Thanks heaps man.

[TheEntertainer]

Here is a power BI graph where engine speed is a secondary axis
179258

[TheEntertainer]

Hi mate, had a quick look and they seem all to still be in place...


I think it's 1.2 seconds.

That is an unusual log, can you check that all of the intercooler hoses are on?

[TheEntertainer]

Should the boost not go up with the engine revs (standing still)? in the graph below boost is consistent at 14psi.
This was about 10 seconds at idle and then 7 seconds at 2750rpm stationary
179261
I did check the wastegate this morning, with a 'vice grip' on it, I still needed a screwdriver to get it moving. So it seems very tight.

[shack]

In this scenario, and with the nanocom you are using the "turbo pres" is manifold absolute pressure, so you would need to subtract ambient pressure from turbo pres to get the boost amount in kPa.

Then convert into something slightly more user friendly.... Bar.

So that 14 psi you are mentioning is actually 0.14 bar, or about 2psi.

I checked one here at the same RPM and got about .33 bar or 4.8 psi.

So yours does seem a bit low.

In regard to earlier comments re what could cause high EGT and smoke, a dodgy MAF definitely can, but seems to not be the cause on this one

So what PhillipA suggested regarding the Wastegate would be next option.

As a side note, air flow in your nano log is recorded as "g/s" - grams per second, this is incorrect, it's actually "kg/hr" - kilogrammes per hour.


Cheers
James

[shack]

Here is some more info on the log, if anything the MAP sensor is not following the MAF upwards when engine speed increases, as to why? That's the tricky part.

In fact, air mass in the cylinder actually drops as RPM rises. (According to the MAP/IAT).

It could be leak after the turbo on the inlet system, a dodgy MAP, sensor or who knows!

https://uploads.tapatalk-cdn.com/20220614/df5e72b59f2ffe8cab4e870be32f58cc.jpg

[TheEntertainer]

Just installed a 5 bar boost sender connected to the td5, at idle it's reading at 25psi, ran out of time and will check but I'm sure the I've got it set on the correct sender 2bar, 5bar or 10bar being a 5 bar vdo sender

[shack]

Just installed a 5 bar boost sender connected to the td5, at idle it's reading at 25psi, ran out of time and will check but I'm sure the I've got it set on the correct sender 2bar, 5bar or 10bar being a 5 bar vdo senderYou will need to explain that!

Have you adjusted the scaling in the tune?

Or is it just for a standalone boost gauge?

[TheEntertainer]

Hi Shack,

I've installed a standard VDO 5bar gauge and it's hooked up to a MADMAN EMS3 unit. These are pre configured for 2,5, and 10 bar senders and I can confirm is set on 5 Bar.

At Idle the boost is reading 25psi, yet to go for a drive this morning.

Cheers

J

[shack]

Hi Shack,

I've installed a standard VDO 5bar gauge and it's hooked up to a MADMAN EMS3 unit. These are pre configured for 2,5, and 10 bar senders and I can confirm is set on 5 Bar.

At Idle the boost is reading 25psi, yet to go for a drive this morning.

Cheers

JThe boost will definitely not be 25 psi at idle, so there's something wrong there.

It should basically be zero.

[TheEntertainer]

The boost will definitely not be 25 psi at idle, so there's something wrong there.

It should basically be zero.


Hi your correct.

Just after starting the car for the 1st few minutes when the engine is still very cold it seem to sit on 25 and go up to 29/30, after about 5 minutes it drops down at idle to 21/22 and goes up to 29/30, when the car is warm it drops down to 0 and goes up to about 25/26.

Cheers

Jan

[TheEntertainer]

Where to next, egt is running higher than normal or what it ise to be. Smoking like a chimney. The new maf is a v BBB do… shall i get an original from land rover? Somethings not right.

[shack]

Where to next, egt is running higher than normal or what it ise to be. Smoking like a chimney. The new maf is a v BBB do… shall i get an original from land rover? Somethings not right.Correct, something is wrong.

I wouldn't be buying a another new MAF just yet.

On the log I had there was difficulty in correlating a few things.

From the age of the tune you are running I'm thinking it could be a BAS, they were pretty famous early on for boost boxes, does yours have one? Or a MAF "cheater"?

Cheers
James

[TheEntertainer]

Hi mate,

I got the map from Toombie and it’s been great for the past 9 years or so. I’ve done a few short runs and saved them all as individual files. Will download and share them tonight.

I was not sure what the BAS or MAF bypass is…

Do you recon it’s time to upgrade to a more modern map? 9 years later and I guess the maps are a lot more refined.

Ps, I’m not overly power hungry just want the Defender to run well (and tow well).

Cheers

J

[shack]

Hi mate,

I got the map from Toombie and it’s been great for the past 9 years or so. I’ve done a few short runs and saved them all as individual files. Will download and share them tonight.

I was not sure what the BAS or MAF bypass is…

Do you recon it’s time to upgrade to a more modern map? 9 years later and I guess the maps are a lot more refined.

Ps, I’m not overly power hungry just want the Defender to run well (and tow well).

Cheers

JThat'll be good.

It's highly unlikely that anything went wrong with the map/tune you are running, it's most likely a failed sensor or air leak or restriction.

BAS = Bell Auto services in the UK.

The MAF is mass air flow sensor, on some "bigger" tunes the MAF would go out of range, so some extra hardware was fitted to lie to the engine ECU to stop fuelling issues.


At the end of the day, black smoke is caused by insufficient air to cleanly burn the fuel injected.

We've just gotta find out why.

Cheers
James

[TheEntertainer]

Here is a map going up a slight hill and pushing it a little in 3rd and 4th gear with some smoke about 3/4 into it.

Was trying to install a windows 7 VM so I can run the excel app from nanocom, still trying... need an older version of excel

anyway here is a csv.

thanks heaps again179430



That'll be good.

It's highly unlikely that anything went wrong with the map/tune you are running, it's most likely a failed sensor or air leak or restriction.

BAS = Bell Auto services in the UK.

The MAF is mass air flow sensor, on some "bigger" tunes the MAF would go out of range, so some extra hardware was fitted to lie to the engine ECU to stop fuelling issues.


At the end of the day, black smoke is caused by insufficient air to cleanly burn the fuel injected.

We've just gotta find out why.

Cheers
James

[TheEntertainer]

from line 31 - 49 that's when it looks like an old diesel truck with heaps of smoke.

[shack]

from line 31 - 49 that's when it looks like an old diesel truck with heaps of smoke.

This is what the log looks like graphically.

You can see the discrepancy between MAF aircharge and MAP aircharge, and the fact that MAP aircharge never exceeds what mine would be doing at about 900 rpm, should lead us to think that either both sensors have failed, or that there is an intake leak after the MAF but before the Map sensor.

The MAF immediately following the the throttle down is also suggestive of an issue after it but before the MAP.

So intercooler hose off, or split intercooler.

These options would be leading the pack for mine....179439

[TheEntertainer]

Thanks heaps mate, I've been wanting to replace the silicon hoses for some time now, so will just get that done.


I can't get it to run on a VM or old laptop..., did you use the nanocom csv viewer or something else? and if so, are you running windows 7 32, with excel. I'm using power BI but can't quite get it to look the same as the one you are seeing. For the graph you posted is that turbo pressure, Airflow and Accel. track 3?

Cheers

Jan

[shack]

Thanks heaps mate, I've been wanting to replace the silicon hoses for some time now, so will just get that done.


I can't get it to run on a VM or old laptop..., did you use the nanocom csv viewer or something else? and if so, are you running windows 7 32, with excel. I'm using power BI but can't quite get it to look the same as the one you are seeing. For the graph you posted is that turbo pressure, Airflow and Accel. track 3?

Cheers

JanI use Mega log viewer, I was put onto it by offtrack.

It's a paid program but very handy, and can have calculated fields added.

The three values that I've got plotted are all estimates created from the nanocom csv.

Whilst they are estimates, they are pretty accurate based on tests I've done here vs the actual ECU values.

So I've used track 1 as throttle, but you need to do more than just use it, it needs offset and slope calculated.

The other 2 are the calculated mass of air in the cylinder from the MAF and the MAP, they should be pretty close to each other, and the should definitely follow each other as far as "trends" go.

Yours do not.

Cheers
James

[TheEntertainer]

Hi,

Did this one with Power BI desktop after adding an interval of one second as column 1.

179462

and for those interested in the mega log here is the comparison.

179463

MegoLog is the clear winner!

[TheEntertainer]

I replaced the two hoses on the Turbo side, here is the csv for interested and a pic of the graph.

179479

[TheEntertainer]

After starting the car cold, boost sits on 28psi until the car is warm, around 4-5 minutes, then it drops down to 2-3 at idle and 15-16 at revs.

Is it normal for it to stay so high until the car is warm?

cheers

[shack]

After starting the car cold, boost sits on 28psi until the car is warm, around 4-5 minutes, then it drops down to 2-3 at idle and 15-16 at revs.

Is it normal for it to stay so high until the car is warm?

cheersThat is all completely wrong, something must be wired incorrectly.

[TheEntertainer]

The only other thing I found is that compared to some of the you tube videos, it does take a lot of strength to manually move the waste gate forwards and backwards. With a vice grip I still need long screw driver and use some leverage to move it.

[shack]

The wastegate shaft should be fairly hard to move.

The fact that the 2 sensors are reading so differently to each other would suggest either a failed sensor, or a problem in between them somewhere.

When you consider the smoke, that points to lack of air, so the ECU is fuelling based on MAF, which is why you have smoke, as according to the MAP sensor, the air is not not making it to the intake.


But that's a broad diagnosis from miles away behind a keyboard!

It's really difficult to sort.... If you continue to have issues, take it to an LR mechanic.

[TheEntertainer]

You know that feeling when you realised you swapped the wires around.... Bugger... thought I was going to melt in my shoes. When configuring the ems unit I changed channel 3 to read boost, I must have accidently shifted one up before entering the menu. At least now I can report back what the oil pressure sender is doing.... 28psi until the engine is hot and then the switch opens and it drops down to about 4psi and up to 16psi when driving.

Apologies for the goose chase, at least now we should get the boost right after the turbo and be able to compare it with the map sensor.

[shack]

You know that feeling when you realised you swapped the wires around.... Bugger... thought I was going to melt in my shoes. When configuring the ems unit I changed channel 3 to read boost, I must have accidently shifted one up before entering the menu. At least now I can report back what the oil pressure sender is doing.... 28psi until the engine is hot and then the switch opens and it drops down to about 4psi and up to 16psi when driving.

Apologies for the goose chase, at least now we should get the boost right after the turbo and be able to compare it with the map sensor.I figured it was oil pressure, but also seems a little low...

[TheEntertainer]

Hi all,

Boost on the sender reads about 2 psi higher on average compared to the reading from the MAP sendor/

In 3rd gear flat our at 2800 rpm the map read 13psi and My sender (bench tested) reads 15 psi

The same in 4th, steady going uphill, 7psi on the map and 9psi on my sender

Cheers

J

[shack]

Hi all,

Boost on the sender reads about 2 psi higher on average compared to the reading from the MAP sendor/

In 3rd gear flat our at 2800 rpm the map read 13psi and My sender (bench tested) reads 15 psi

The same in 4th, steady going uphill, 7psi on the map and 9psi on my sender

Cheers

JSo taking this into account along with the MAF reading and smoke... You are losing air somewhere between the turbo air discharge and the MAP sensor in the manifold.

Where is the standalone boost sensor plumbed in?

[TheEntertainer]

Hi mate,

I tapped in on the tube that runs into the waste gate from the metal pipe just down below it, inbound to the intercooler. Hopefully I can get into my mechanic this week.

Cheers

J

[TheEntertainer]

Morning, latest update.

All seems fine with the physical air flow in the system, no holes, blockages. Machinic found a slight hiccup every now and again with the revs and cleaned the sensor on the drive shaft.

There seems to be a bit of a blue tint in the smoke and this could be due to a bit of glazing, I'll do another fuel consumption test. I was just thinking if there is a bit of glazing could that lead to the high temp I see in the EGT?

I have also noticed there is a bit of fluctuation in the ambient pressure from the air filter box, I'll clean the sensor just in case.

179958

Kind regard

J

[shack]

Morning, latest update.

All seems fine with the physical air flow in the system, no holes, blockages. Machinic found a slight hiccup every now and again with the revs and cleaned the sensor on the drive shaft.

There seems to be a bit of a blue tint in the smoke and this could be due to a bit of glazing, I'll do another fuel consumption test. I was just thinking if there is a bit of glazing could that lead to the high temp I see in the EGT?

I have also noticed there is a bit of fluctuation in the ambient pressure from the air filter box, I'll clean the sensor just in case.

179958

Kind regard

JAmbient pressure reading will vary with airflow, I've seen a differential of up to 8 depending on tune and air intake setup.

I'd ignore yours, it's nothing unusual.

Try unplugging the map sensor and going for a drive.. That's all I can suggest, see if it makes any difference.

[TheEntertainer]

Check out the video, best with sound up high
Diesel - Made with Clipchamp_1660716683638.mp4 - Google Drive (https://drive.google.com/file/d/1xuAAmuQoKHYcQuqzMTcub2OLpWqY9yoc/view?usp=sharing)
if it does not play, download it and then play it from you hard drive.
Cheers

[4runnernomore]

Sounded like the car was backfiring. Could have been background noise. Have you checked your red ECU plug for oil contamination?

your boost pressures also seems low (13-15 psi) I’ dimagine with a good tune you should be into the very high teens low 20’s. More air to help burn your fuel delivery.

ignor first para above it was the road joins.

[TheEntertainer]

Hi,

I'll check the red plug and post back.

Was attempting to test the wastegate and found a hole in the boost pipe leading to the boost gauge. Note the pipe had what seemed to be oil in it, not much but enough to drip out. I fixed that, took her for a drive boost is only back to a max of 12, My boost sender reads the same as the (Turbo pres - ambient) * 0.1450... from the nanocom. I've adjusted the wastegate from 13 threads back to 11 threads, will take test it out when I take the kids to school.

I was able to apply up to 20psi of pressure for a second or so to the boost system with a high volume mountain bike pump (it then leaks out) the wastegate did not move, I'll remove the wastegate and test it with some direct pressure to make sure it free and can move as it should (thank for the advise Shack)

Fuel consumption is down to 8km / L and measured over 3 refuels from full and driving and average of 130km each time.

[TheEntertainer]

Latest update,

Got some help to put a stock tune back on. Smoke is gone (and so is the power). It does drive well and has enough power in the city, struggled up Bulli pass though on the way home on Sunday. Diesel consumption was 8l / 100km, will post back tomorrow if that has improved. Now with the standard stock, the car is back to standard fuel and it's also running a lot cooler.

Boost is still down I believe, the most I can get is 12psi in 3rd pushing it as hard as possible. Mechanic has checked the air flow and could not find a blockage or leak. He had another td5 defender, luckily it had a boost gage and similar age, the other defender was reading at 14psi at full boar.

Back to the drawing board

[TheEntertainer]

Installed a second hand turbo (in a good condition). Boost pressure has unfortunately not changed so the search still goes on.

[TheEntertainer]

Hi all,
With a lot of help from shack and a few others I have now resolved the issue and boost levels are back to normal. 16psi with the odd 17psi full out.

I undid the bolts on the down pipe and pushed it down so there is a 5mm gap, drove around the block and beside an awesome sounding car the boost was back whoopot. Tightened them back up and loosened the ones further down the pipe, back to normal. Replaced the down pipe and boost is now back to normal. Whoohooo

[350RRC]

Hi all,
With a lot of help from shack and a few others I have now resolved the issue and boost levels are back to normal. 16psi with the odd 17psi full out.

I undid the bolts on the down pipe and pushed it down so there is a 5mm gap, drove around the block and beside an awesome sounding car the boost was back whoopot. Tightened them back up and loosened the ones further down the pipe, back to normal. Replaced the down pipe and boost is now back to normal. Whoohooo

A great boost for shack's reputation................ love his intelligent posts.

DL

[shack]

A great boost for shack's reputation................ love his intelligent posts.

DLI step away for a few hrs and there's accusations flying everywhere!!

Thanks for that though, I do try and think things through.. In my own special way of course.

[TheEntertainer]

The help is one thing not giving up is another. Amazing!

I’ll post the after graph from the nanocom. Egt temp with light load and mid performance map high at around 460 boost max 13psi, with standard map around 380 and boost 11psi now with new down pipe egt 280 and max boost 17psi. Can’t wait to see what my fuel consumption is like.

[TheEntertainer]

Here is the latest map: I'll get on to compare a bit later
181200

[TheEntertainer]

Here is the before (top) and After (bottom) comparison pulled from the nanocom

181201