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11-21-2001, 02:52 AM
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#1 |
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Junior Member
Join Date: Mar 1999
Location: Ventura, California
Posts: 8,981
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Popping in the exhaust when free revving the engine is a symptom of a lean mixture. Only being a problem when the engine is warmed up means it's not injector or filter related, as mentioned. When cold, it's in open loop, and rich. That's normal. I am suspicious of the O2 sensors, but you really should run a KOEO and KOER self test and see what codes come up.
Take care, -Chris
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