runs like crap

[bitdist]

My 2001 defender TD5 has been sitting around while I do stuff on it for over a year. I started it last week a couple of times and it idled fine. (The only thing it did do was when I revved it up and backed off it would die down to idle but would give a little hickup as it reached the bottom of the idle)
But went to drive it this morning and it barely runs, coughs and splutters, idles very rough (sometimes stops).
I managed to get it home in low range but wondering where to look.
Nanocom doesn't see any errors other thans ones that have no bearing on the problem.
It now chugs when idling :(

Could it be fuel gone off after a year or more in the tank or ???

Any ideas what to look at ??

cheers

Tim

[gazk]

Possibly Oil in the injector harness, check the red plug on the ECU.

[bitdist]

Thanks Gary,
That's all clean though

[DiscoDan]

Hell yes not only does the fuel go off but an algie may have grown in it as well blocking the filters. Very common in diesels. Lets hope it hasn't made it to the injectors. then a hugh cost may occur.

As for oil in harness unlikely as car hasn't been running but unplug cpu and check.

I would check plugs on cpu first as this is the easiest however I would put bets on the fuel filter being clogged

[harro]

Try disconnecting the MAF.
It will run better disconnected than faulty.
It will at least eliminate it as a problem.

Then pull out the MAP sensor and give it a clean also the AAP sensor in the airbox.

Oil gets into the Harness connectors on the injectors inside the cam cover, this intermittently insulates the injector from the ecu signal and causes the misfire so often attributed to the Oil in the ECU.
A new harness is the best cure but simply pulling of the connections and cleaning them gets rid of the misfire for a while.

Is the fuel pump making much noise?
Could be low fuel pressure?

Cheers,
Paul.

[spudboy]

I've got a 130 'project car' that hasn't been on the road since 2008, and still with the same tank of diesel that I fueled it up with on its last trip out, over 4 years ago.

It gets started and run about once a month, and no issues at all with idling/running, so I don't think just because your fuel is old it will neccessarily be that.

Mine is kept inside in a shed, so it is out of the weather if that might make a difference.

[manic]

My 2001 defender TD5 has been sitting around while I do stuff on it for over a year

What u stuffed up then?

[bitdist]

What u stuffed up then?

Not sure if I have stuffed anything up !
I have been doing lots of things, but nothing on the engine/fuel system etc.

Now to go and try the suggestions...

[bitdist]

Looks like fuel pump to me,
relay is OK fuse is OK, getting 12v at the pump but no noise at all
(Fuel filter was clean, but I changed it anyway)

cheers

Tim

[manic]

Not sure if I have stuffed anything up !
I have been doing lots of things, but nothing on the engine/fuel system etc.

Now to go and try the suggestions...

just doing some detective work old boy.

I have a td5 fuel pump sitting on the shelf if you need one.

[bitdist]

Thanks for the offer. :) I just got back from picking one up from a friend to try in the morning.
Then if it works OK it is then time to find one at a decent price.
Anyone know the difference between the britpart/allmake/bearmach/vdo pumps compared to the origonal ones as the price seems to vary from about 70 pounds to 300 pounds out of england

cheers

Tim

[chuck]

Tim

If you have got to the stage of driving it where are the pictures.

Cheers

Chuck

[bitdist]

Tim

If you have got to the stage of driving it where are the pictures.

Cheers

Chuck

Hi Chuck, yes I am a little behind with the pics. It is coming together well though. I'll try and update soon!

[djam1]

Dont buy cheap fuel pumps for the TD5 it will only involve you replacing it again within 12 Months

[flagg]

Thanks for the offer. :) I just got back from picking one up from a friend to try in the morning.
Then if it works OK it is then time to find one at a decent price.
Anyone know the difference between the britpart/allmake/bearmach/vdo pumps compared to the origonal ones as the price seems to vary from about 70 pounds to 300 pounds out of england

cheers

Tim

Don't go britpart - for anything. When I started my resto I got a huge amount of stuff.. and everything that had the britpart logo on it was utter garbage. The quality is appalling - a lot of stuff didn't even fit properly.

[spudboy]

Here's a thought on making your fuel pump last longer: Keep the tank (generally) full rather running a lot at empty.

When near empty, there's not so much volume so the returning fuel heats up in the tank much more, and reduces pump life expectancy.....

[centy]

im assuming that the battery was disconnected for a length of time.

if so then maybe the computer needs to learn the engine settings again.

there will be a procedure somewhere on how to do it.

on a commodore you connect the battery start car and rev to 2000rpm and hold for 30seconds.

you may need to do something like this but will need to unhook battery and clear memory.

[bitdist]

Thanks for all the suggestions.
I have worked it out, after changing pumps over it still didn't work. Having tested there was 12V at the pump it finally occurred to me to test if the earth was earthing...:bangin::bangin:

It was the earth wire, so everything works now.

cheers

Tim