The unfixable mystery problem

carl johansson · 07-18-2009, 06:07 AM

Have you looked at the throttle cable? have someone sit in the car and floor it = while you watch the cable - maybe the cam lobe broke off or something stupid like that - so it's going back low throttle -

compare that to watching when you are at 3/4 throttle and it revs to redline.

I assume you took the fuel pressure after the fuel filter right?

It almost sounds like it's getting to much fuel at full throttle - did someone change the injector sizes? and isn't there an adjustable fuel pressure regulator? To much fuel at full throttle could be choking it off - while 3/4 is allowing enough air! It used to be a fairly common problem in carbed cars!

Just throwing out ideas - I don't know!

Carl Johansson

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07-18-2009, 06:07 AM	#10
carl johansson 3" Exhaust Join Date: Nov 2007 Location: Auberry, California Posts: 141	Have you looked at the throttle cable? have someone sit in the car and floor it = while you watch the cable - maybe the cam lobe broke off or something stupid like that - so it's going back low throttle - compare that to watching when you are at 3/4 throttle and it revs to redline. I assume you took the fuel pressure after the fuel filter right? It almost sounds like it's getting to much fuel at full throttle - did someone change the injector sizes? and isn't there an adjustable fuel pressure regulator? To much fuel at full throttle could be choking it off - while 3/4 is allowing enough air! It used to be a fairly common problem in carbed cars! Just throwing out ideas - I don't know! Carl Johansson