Ok, I just got finished installing the turbo. crank it up and it idles good, take it for a spin and it runs good in vaccum, but when I hit boost, the car bogs real bad, and the air/fuel guage doesn't read full rich like it's supposed to. It will run straight if I modulate the throttle and keep it at 1 or 2 psi(air fuel guage a little rich), but if i go into boost it bogs. I think it has something to do with fuel management but not sure at the moment cause my rom burner died on me now I have nothing to change the maps with.

Any ideas on what else it could be, too rich? I would think this too, but the air/fuel guage doesn't read full rich when it bogs. I also didn't hear any cool sounds, no blow off valve and no cool spooling noises.

Setup:

ZC engine
T-25
non-intercooled at the moment
open downpipe (o2 sensor in the hf mani)
TE2.0
Stock NG4 rom.

Please help!

 

ya think that since you have the o2 sensor inside the manifold vs. the downpipe that the computer is reading super lean conditions?

I would never run a 3 wire o2 sensor inside the manifold, those are for 1 one units.

That might be ------- ya.

 

no he's running the stock NG4 rom.. needs tuning.

 

It is a one wire o2 sensor.

 

I don't know much about TE 2.0 but is that rom for a stock car, or for a boosted car. It probably just needs tuning

 

No It's for a boosted car but I'm thinking it's way too rich.

Does anyone know who sells burnt chips?

 

You need tuning..the stock NG4 rom is a base rom...not a boost ready rom...the NA part is pretty good but the Boost part needs tuning..grab a WBO2 and tune it...