Thread: Surging TD5

Originally Posted by bronson

Hi Guys,

Its funny that I just read this, I have a 99 td5 manual that also has a TRS ECU in it. I noticed the slight shudder at take off from stationary, and it also has a slight surge if you want to call it where it takes off if you are trying to get around this shudder. Feels like a two stroke that has just hit power band not good!!!!!!
Does anyone think that there could well be a slight problem with thes TRS ECU'S??????
I am also in the process of replacing the injector harness, as this I have found that it makes it worse, when there is oil at the red ECU plug.



Is there a way to over come this problem once we have purchased these ecu units?????


Has anyone also found that the fuel economy has gone through the roof??

There may be a problem in the map, BUT, I really want to make sure its not at my end before I start asking for some changes.
My fuel consumption has always been good, but now has improved even more.

My understanding about fixing this (if it is the ECU map) is no chance unless the map is modified/fixed by the programmer. I cant see how a flashable unit with the same map will change anything.

Originally Posted by strangy

There may be a problem in the map, BUT, I really want to make sure its not at my end before I start asking for some changes.
My fuel consumption has always been good, but now has improved even more.

My understanding about fixing this (if it is the ECU map) is no chance unless the map is modified/fixed by the programmer. I cant see how a flashable unit with the same map will change anything.

OK just a bit more on my BD chip, the chip I have is not available anymore, so BDavis told me last we spoke, my chip is in between the mild and wild chip, I would imagine he has stopped doing it because of the problems it causes with the sudden surge it creates in low range.

Now as far as I know, Ritters and TRS non-flashable chips are done by BDavis, of cause I could be wrong

Baz.

i have a tombie upgrade in an auto D2a..the only surging i get is between 105kph and 108kph, its only minor and its due to the change over point for the fuel maps. after a few weeks the auto has relearnt the shift patterns. appartently the D2 auto is intelligent in this way. i no longer have this issue.

No problem Nanocom will sort all that.

only if its a flashable ECU, NNN prefix only.

cheers phil

Originally Posted by Stuuu

Similar surging when doing 40kph in third gear past the schools in town. Noticed it first after the TRS chip upgrade and thought maybe the bigger intercooler may help.

Upgraded intercooler and that did help but surging still there - only noticable at constant roadspeed.

Too close to meal time for me to double check the revs so will do so tomorrow.

Off road seems ok but have only done so with the camper in tow.

Checked around town today and the surging is there in 1st, 2nd & 3rd in the 1700-1850 rpm range. Not noticable in 4th and didn't try 5th.

As I said it is definitely less since the intercooler upgrade.

Originally Posted by Redback

Now as far as I know, Ritters and TRS non-flashable chips are done by BDavis, of cause I could be wrong

Baz.

TRS got mine on a Monday morning and I had it back on the Wed Express Post so I would say they do their own. It was the original ECU according to the serial number.

Sorry double post.

Originally Posted by Stuuu

Checked around town today and the surging is there in 1st, 2nd & 3rd in the 1700-1850 rpm range. Not noticable in 4th and didn't try 5th.

As I said it is definitely less since the intercooler upgrade.



TRS got mine on a Monday morning and I had it back on the Wed Express Post so I would say they do their own. It was the original ECU according to the serial number.

thanks. TRS said it was their own map and equipment for the upgrades.

Thanks for checking your RPMs. Sounds vitually same as mine.

Did you get the TRS intercooler or a Tombie job?

TRS. And I replaced the hoses with silicon hoses when we changed the intercooler.

Having checked the 1700-1850 range today it feels like the turbo is trying to engage or kick in.

In 1st, 2nd or 3rd if you put the pedal down at 1700 it takes off almost immediately with no lag.

I find it annoying but maily because 1750 in 3rd is 40kph past the schools!

Originally Posted by strangy

thanks. TRS said it was their own map and equipment for the upgrades.

Thanks for checking your RPMs. Sounds vitually same as mine.

Did you get the TRS intercooler or a Tombie job?

TRS and Tombie Intercoolers are both made here....

www.aseturbo.com.au