TD04 Turbo

[Leethesparky]

I had exactly the same problem with mine when I first fitted the turbo.
It ran stupid rich and wouldn't tick over properly.

Turned out the maf was duff. It broke at exactly the same time I fitted the turn for some wierd reason.

If you need it I could download a copy of my map and email it you. Your setup is very similar to mine. It's far from perfect but runs and hasn't blown up yet in over a year.

[Mark A]

Hi Lee that would be helpful I'll pm my email address

[Leethesparky]

No problem, I'll get it sorted for you,

Stu's advice makes sense though, I need to look at mine again. It drinks fuel in traffic, creeping in second gear. Everywhere else along the map seems ok though.

[Leethesparky]

Mark, forgot to ask.. How are you running your emanage? Maf or map?

[Mark A]

AFR gauge fitted but struggling to understand what's going on. AFR is hovering around 20-22 at idle, so changed the injectors back to standard and only slightly better, dialed in 50 air flow correction and still running at 18, do you think the Emanage might be incorrectly set up? If so any ideas which settings? Therotor switch is 4-2-1 and using TY 3 maf. Greddy map connected.

[shnazzle]

Personally I would zero out the airflow and adjust fueling instead. There's a separate idling table on the emanage.

Sent from my SM-N9005 using Tapatalk

[Mark A]

It's a E-manage blue don't think it has those functions!

[shnazzle]

You're technically correct, it's called Anti Stall, and I shouldn't have mentioned it because it's bad practices to use it to control idle.
It should be done in the fueling table.

Are you using a dump valve venting to atmosphere by any chance?

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[Leethesparky]

stupid question, but is your maf pipe in the right way around. Im sure the maf would see a greatly reduced airflow if it was the wrong way making it lean.

You car should start and idle ok even with all the maps zero'd. The closed loop sees to that. Mine has a blow off to atmosphere and never stalls.

[Mark A]

Took the car back to basics removing the ECU, injectors and pipework. I now suspect it's not the Greddy E-manage. Can anybody show me the location of your MAF on a turbo installation? I think it might be the location of the MAF and it's proximity of a 90 degree bend. I might try another MAF also.

[Leethesparky]

Have a look at my thread mark. I've just updated it with a pic

Mine was literally fitted to a 90 bend but it worked. I just had nuts on the inside of the pipe I expected to get sucked into the engine. So have changed it now

[Mark A]

A little progress today, found a Subaru STi MAF which is a direct replacement but rated in excess of 350 bhp. Planning to test MAF and see if it makes a difference. Won't get to RE route the MAF pipe work as the Touareg needs it propshaft changing.

[Mark A]

Tested the MAF and little difference so now suspect its the MAF tube positioning and the proximity to a 90 degree bend with a reduction, as it seems to run OK with out the attached bend. Two weeks off soon and away so little progress likely.

Also bought this for £20 so should resolve the lack of an expansion tank for the charge cooler

[Mark A]

Back from my holidays and spent a little time trying to resolve the issues I have with the car and turbo installation.
RE-routed the intake and re-positioned the MAF, much happier with this now but it means the charger cooler sits over exhaust manifold so will need some heat management.

Car ran better but still running rich, the disappointing thing I discovered and might have been worsening the situation is the oil seal on the compressor side of the new turbo has failed and the MAF has been contaminated with oil. I must have damaged it while clocking the turbo.
So pretty  spiss piss spiss ed off and need to take stock before deciding what to do.

[Anonymous]

Is it a ball bearing turbo or a journal turbo?
If it's a ball bearing type what are you using to restrict the oil feed?

[stupink]

yeah, I doubt you've damaged it while clocking the thing, especially if you only loosened it and rotated it.. if you've had it apart.... na even then I doubt it..  you've got unlucky and its faulty as new or you've got an issue like Richards suggesting or your return pipe is not returning properly etc.

[Mark A]

Right been a month and a lot has happened but not to the car!

Brief summary went on holiday for 2 weeks,  came home and became infected with Campylobacter lost about a stone in weight and had about three weeks off work. Been back at work for 2 and finally back to normal.

In that time I've had a long hard think about the car the direction of travel and missed another MR2 Summer!

When I last updated this thread the turbo was pizzing oil out of the compressor output, fountain style! I've come to the assumption that some how when initially testing the fit and trying to clock the turbo I've damaged the main seal. I'll take the turbo off and replace the seal in the hope that this resolves the problem, this might also explain some of the issues I'd been having with the idle as the MAF was very oiled up when i removed it.

So I hope in the next couple of weeks to restart work on this mother and get the little focker finished before it turns too cold.

Mark

[1979scotte]

Glad your back to your best.
Looking forward to more updates.