right o2 sensor keeps failing
Thread Starter
Instructor
Joined: Apr 2010
Posts: 197
Likes: 0
From: Dalton Georgia
right o2 sensor keeps failing
I had my right o2 sensor fail awile back and relpaced it with a bosch _ I'm no fan of bosch but it was all I could find at the time , my 1994 vette run great for about a 3 weeks then the sensor failed again h64 well I took it back and replaced it now a month later this one has failed. The car runs great when I replace them and then when they go bad it floods horribly until the check engine light come on then it runs fine. I have a delphi o2 sensor ordered I'm just wandering if there is anything that could be causing this? I have a hard time blaming anything because the car runs perfect when I replace them and it runs great when the computer goes into closed loop. Do you guys think I got two pieces of crap from bosch or could there be an underlying problem?
Last edited by ChrisLT1conv; Jun 27, 2010 at 10:16 AM.
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Safety Car
Joined: Dec 2007
Posts: 3,616
Likes: 5
From: Sandhills of North Carolina
Safety Car
Joined: Dec 2007
Posts: 3,616
Likes: 5
From: Sandhills of North Carolina
Thread Starter
Instructor
Joined: Apr 2010
Posts: 197
Likes: 0
From: Dalton Georgia
I have new wires, plugs, new opti, new coil and new icm on the car. When I put a new o2 sensor in it runs great for about a thousand miles if it had a bad wire or a bad connector shouldn't it fail almost immediately? I do know that I had to order the delphi for the right side and the bosch was not side specific. I don't know if that matters or not.
Safety Car
Joined: Dec 2007
Posts: 3,616
Likes: 5
From: Sandhills of North Carolina
I have new wires, plugs, new opti, new coil and new icm on the car. When I put a new o2 sensor in it runs great for about a thousand miles if it had a bad wire or a bad connector shouldn't it fail almost immediately? I do know that I had to order the delphi for the right side and the bosch was not side specific. I don't know if that matters or not.
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
IIRC, there are either 3 or 4 wires. 1 or 2 of them are ground. If it is a 3 wire, one is 12V, the other is ground and the other goes to the computer. If it is 4 wire, the same except one is ground.
Safety Car
Joined: Dec 2007
Posts: 3,616
Likes: 5
From: Sandhills of North Carolina
Good deal! Now let's hope it last a while!