Thread: Knock at idle?
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Old 09-24-2009, 10:00 PM   #14
john 1badSTI
Scooby Specialist
Member#: 77470
Join Date: Dec 2004
Chapter/Region: MWSOC
Location: grove city ohio
04 sti [email protected]
on [email protected] 30psi--spinning


are your short term trims jumping around alot once warmed up if they are your front fueling o2 sensor is probably on its way out.if you have a lot of miles on the sensor it is probably bad because of the poor clock position in the front manifold they are susceptible to moisture from condensation in the exhaust and that can be worsened by the climate you live in. just my 2 cents, good luck
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