my supra totally lacks power. if i barley push on the throttle it will excellerate. any more and it stalls out. no engine codes are comming up? is this a TPS. issue?

Asked by Nov 19, 2012 at 02:41 PM about the 1990 Toyota Supra 2 Dr Turbo Hatchback

Question type: Maintenance & Repair

the only engine mode so far is the walbro highpreasure fuel pump. and a ramair induction. it was running a little rich but fine. also i still have the stock ECU.

2 Answers


Have you checked the fuel pressure? The fuel filter could be clogged, or the fuel pressure regulator could have failed...

1 of 1 people found this helpful.

Hey thanks for the insight.i resently changed the fuel filter.and i have a Driftmotion Aeromotive,high preasure fuel regulater / with gauge. my baseline preasure is perfect @ 40 PSI. It was the TPS. ive got it all adjusted. this car is far from stock; 430hp. just a street toy. ill be listing it in the next day or so. i'll start the bidding@ 10,500. wait till i download pics !!!!!!!!!!

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