issue with TPS

dlowman · 03-17-2006, 09:10 PM

I am having an issue with my tps going to 0% in the factory ignition logs of the utec. I am not getting any other check engine codes. I am running this on top of an ecutek and have basically made the factory ecu stupid above 3000 rpm. The issue seems to only happen when I am under boost. The car is an 04 Sti with numerous mods. So far I have swapped out the throttle body and position sensor. And even swapped out the utec thinking it was a bad utec. I am out of ideas. The unusual thing is that the car will stop doing this the more you drive it. After about 10 mins of driving the issue seems to go away. The issue is worse when you first start to drive it.

Thanks,
Dan

x99percent · 03-18-2006, 10:32 AM

Quote:

Originally Posted by dlowman

I am having an issue with my tps going to 0% in the factory ignition logs of the utec.

Can you post an example?

dlowman · 03-18-2006, 10:53 AM

I will try to pull some logs and let you guys look at them. Basically it will go to all 0% then start working again. It's the wierdest damn thing. I don't think its the utec. It's not the throttle body sensor.. I have swapped both of those out. Maybe the cable going to it??

Dan

x99percent · 03-20-2006, 10:22 AM

Quote:

Originally Posted by dlowman

Maybe the cable going to it??

What cable? The USDM 2004+ STi is DBW (drive-by-wire).

03-17-2006, 09:10 PM	#1
dlowman Scooby Specialist Member#: 22998 Join Date: Aug 2002 Vehicle: 2004 WRX STi GT35R 572 whp 93/meth	issue with TPS I am having an issue with my tps going to 0% in the factory ignition logs of the utec. I am not getting any other check engine codes. I am running this on top of an ecutek and have basically made the factory ecu stupid above 3000 rpm. The issue seems to only happen when I am under boost. The car is an 04 Sti with numerous mods. So far I have swapped out the throttle body and position sensor. And even swapped out the utec thinking it was a bad utec. I am out of ideas. The unusual thing is that the car will stop doing this the more you drive it. After about 10 mins of driving the issue seems to go away. The issue is worse when you first start to drive it. Thanks, Dan

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03-18-2006, 10:53 AM	#3
dlowman Scooby Specialist Member#: 22998 Join Date: Aug 2002 Vehicle: 2004 WRX STi GT35R 572 whp 93/meth	I will try to pull some logs and let you guys look at them. Basically it will go to all 0% then start working again. It's the wierdest damn thing. I don't think its the utec. It's not the throttle body sensor.. I have swapped both of those out. Maybe the cable going to it?? Dan