Question about 1990 Toyota 4Runner

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Power Issue? Engine idles fine but has a flat spot when you give it gas- either in park or while driving. I have had a full tune-up, timing was OK ,new plugs ,rotor ,cap, wires , I was told that it may be fuel injector(s) because it seemed to have a better response when starting fluid was sprayed directly into the intake while running could this be the cause this vehicle has a little over 115K and is in good condition otherwise!

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Check your throtle possiton sensor. it controls the amount of gas given to the engine when you push the pedal. i had the same problem. its located right behind the throtle body and connected by 2 screws. its adjustable so tinker with it and if it needs replaced its about 100 bucks

Posted on Jul 31, 2009

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