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Showing results for tags 'wont accelerate'.
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Hello all! Running into an issues on my 1990 2.5l tbi std shift wrangler and need some help. First a little background. I was in the middle of a full rebuild when I had to relocate, so my brother back in Ohio is completing the rebuild. He put the fully rebuilt and assembled (by machine shop) motor in. I bought every sensor on the motor to replace, as well as new injector. Everything on the motor is new except the fuel pressure regulator and intake. A year ago I put a new fuel tank and pump/sending unit and filter in also. Now the problem.....My brother has everything together. It fires right up and idles great. When he is easy on the pedal it runs fine, but when he really gets on the Gas hard it falls on it's face. He has checked the timing per the manual a few times and it's good. When he puts the timing lite on it while running he is at 11 degrees before tdc, which if I remember correctly was what it was at prior to the teardown. He is stumped.....hes a Ford guy so this is his first jeep motor....and I am fairly ignorant (most would agree strongly). He does not have a fuel pressure gauge to check it (he was going to check AutoZone borrow a tool deal this week to see if ones avail). Any suggestions would be greatly appreciated!