2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

poping from engine/turbo

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Old Sep 7, 2002 | 02:25 PM
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mr_vaughn's Avatar
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poping from engine/turbo

I have a 89 tII stock turbo greddy BOV mariah cold air K&N air intake;walbro fuel pump and when i decelerate the engine pops or pings?
thins is only when i let off the gas quickly.
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Old Sep 7, 2002 | 06:08 PM
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sounds normal, you should check your tps, also check the throttle plate angles
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Old Sep 7, 2002 | 07:38 PM
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Is it the engine that is popping or is it a backfire from the exhaust? Also if it is a pinging sound it could be detonation
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