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Registered
Join Date: Jun 2007
Location: Lancaster County, PA
Posts: 5
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EMS Error code P1087
Need a little help if anyone can offer it. I have an error code coming up on my '01 330ci with 105K on the odometer. I believe it deals with the sensors on the exhaust manifold. I have replaced both sensors on the exhaust manifold as I thought this was the issue. The SES light comes on after about 100 miles or so of driving. The code P1087 is "O2 Sensor Circuit Slow Response in Lean Control Range (Bank 1 Sensor 1)" and I've also had a similar code for Bank 1/sensor 2 as well (P1089). I've cleaned the MAF sensor as I read this may have a barring on it and continue to have this issue. Is there something I am missing or any suggestions?
Appreciate the help...
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