RPM Surging at idle

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09-20-06 | 08:51 PM

Gareth84

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Joined: Sep 2006

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From: Michigan

RPM Surging at idle

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I have an 88 RX-7 manual trans/turbo. When I am in neutral and at idle the RPM surges between 150 RPM & 1000 RPM. Is it the air mass flow sensor?

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09-20-06 | 09:06 PM

Rotarctica

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My car does the same thing. Try resetting your TPS or just replace it. I replaced my TPS and it didn't fix the problem completely. Mine still surges dramatically like that and sometimes will stall out.

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09-20-06 | 11:12 PM

Icemark

Former Moderator. RIP Icemark.

Joined: Apr 2001

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From: Rohnert Park CA

Quote:

Originally Posted by Gareth84

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I have an 88 RX-7 manual trans/turbo. When I am in neutral and at idle the RPM surges between 150 RPM & 1000 RPM. Is it the air mass flow sensor?

No it is a mis-adjusted TPS

Quote:

Originally Posted by Rotarctica

You can not reset it. You need to readjust it.

Your's is not set correctly

Last edited by Icemark; 09-20-06 at 11:14 PM.