O2 question...
04-12-2013, 09:30 AM
#1
O2 question... I had my trans replaced last year(auto) 1994 Camaro
After the trans install, i noticed a surging at low speed/highway speed/cruising. I started throwing an O2 code for bank 2, and decided to look underneath to see what was up. I found the bank 2 O2 sensor completely unplugged.
I drove it like that for approximetly 600 miles before finding the sensor unplugged. I plugged it back in, and the SES light stopped showing up. (I did reset the codes) The problem is that I still have the surging/trailer hitching symptoms I had before plugging it back in.
I'm guessing that the sensor is likely fouled pretty bad, and is switching slow, causing the symptoms I'm seeing now. I has similar symptoms with messed up O2 sensors before.... the question is this.
Does my diagnosis seem right?
After the trans install, i noticed a surging at low speed/highway speed/cruising. I started throwing an O2 code for bank 2, and decided to look underneath to see what was up. I found the bank 2 O2 sensor completely unplugged.
I drove it like that for approximetly 600 miles before finding the sensor unplugged. I plugged it back in, and the SES light stopped showing up. (I did reset the codes) The problem is that I still have the surging/trailer hitching symptoms I had before plugging it back in. I'm guessing that the sensor is likely fouled pretty bad, and is switching slow, causing the symptoms I'm seeing now. I has similar symptoms with messed up O2 sensors before.... the question is this.
Does my diagnosis seem right?
04-12-2013, 10:09 AM
#2
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Hard to argue with an unplugged 02 sensor. Id get underneath it again and double double check everything. Sometimes it can take the older computers some time to 'retune' itself once the sensors are functioning again. If its still doing it after 30-40miles you likely have another issue. You said NO more SES light, right?
04-12-2013, 10:55 AM
#3
Correct. No more SES light.
The car acted like this when I had older bosch sensors on it extended with teh crappy pacesetter extension kit. I bought 2 new denso sensors and proper O2 extension harnesses and the surging issue went away.... until the trans change. Well.... until the installer left one of the o2's unplugged LOL
The car acted like this when I had older bosch sensors on it extended with teh crappy pacesetter extension kit. I bought 2 new denso sensors and proper O2 extension harnesses and the surging issue went away.... until the trans change. Well.... until the installer left one of the o2's unplugged LOL
