over revving(bad luck) anyone had this problem
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over revving(bad luck) anyone had this problem
so i bought and 86 rx7 2 days later i was on my way to the wrecking yard to look for parts and on while i was on the freeway i noticed that when i would let off on the gas the car would just revv itself to reline and stay there so i pulled over and stopped at a gas station started it up and did the same thing and a bunch of white smoke came out i had to get it home. to me it only made sense that the mass airflow sensor was the problem i replaced it with one thats works i got from a friend and still the same thing. maybe a new pcm?
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i just checked it right now, and nothing seems to be binding up, what i dont understand is, while i was driving in and it i kept my foot on the gas it would rev they way it should and the rpm would drop to 3k on the highway it was only when i let my foot off the gas that it would jump straight up
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Yup! That is your ECU. I got that before after rebuilding my engine and the first time I drove it for break in bam! It's one of the those resistors on the ECU opened up. If your gonna replace the resistor just look for a 1/8 watt or 1/4 watt better of 4.2 ohm, since I can't find that value at radio shack I just got my self two 10 ohm resistor and install them in parallel which gives me a 5 ohm resistance, I know it's not perfect but close enough and I got her back and running. If this is too much of a hassle for you, just buy another ecu.
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Jeff20B
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09-16-18 07:16 PM