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Old 10-08-2017, 12:55 AM   #2
[ion] C2
636 whp
 
Join Date: Aug 2006
Location: AZ
Posts: 11,872
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What makes you say the oxygen sensor is dead? Because after replacing it the car seemed to run OK and then acted up again almost immediately? They don't fail that fast no matter how abusive you are to them. Disconnect it so it doesn't do anything and watch as the car likely has these issues regardless...

Could be a bad connection to the sensor. If the car drives great without the sensor connected at all (for longer than your 5 or 30 minute drives so you are absolutely sure it's running fine) then maybe it's a wiring issue at the sensor. This kind of diagnosing is super easy to check with HPTuners if you know anyone nearby with it, though.
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