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Old 12-09-2012, 09:23 PM   #10
Scooby Guru
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
2002 WRX - 750WHP
9.5s @ 150mph


The stock O2 sensor is a narrow band. It works fine near stoichiometric AFR's (closed loop), but is basically useless for open loop.

Who tuned you and how did they tune your car without a wideband O2 sensor? It seems like FIRST thing you should have done after correcting a major leak is get retuned.
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xluben is offline   Reply With Quote