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Idle Bouncing

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Old 01-14-07, 08:48 PM
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Idle Bouncing
I have a 1986 RX7 non turbo. When I start it the idle goes up real high and then back down. Then it continues to bounce the idle up and down, almost like it is surging. I have read the it could be an air flow problem, but where should I start? Could it be the cold air sensor?

Any help would be appreciated.
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Old 01-14-07, 08:52 PM
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TPS or timing is out of adjustment
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Old 01-14-07, 09:00 PM
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I have changed the plugs and wires. It was running fine and then sat for awhile (2 weeks)and is now doing this. What is the TPS?
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Old 01-14-07, 09:06 PM
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Originally Posted by melnikok
What is the TPS?
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/frequently-asked-questions-2nd-generation-rx-7-faq-fc-494667/
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Old 01-14-07, 09:09 PM
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Thanks. Where can I find the TPS = Throttle position sensor?
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Old 01-14-07, 09:16 PM
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Top of the motor, next to where the MOP rod connects to the throttle body
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Old 01-14-07, 09:25 PM
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Thanks, I will take a look.
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