2002 Chevy Impala 6 cyl Two Wheel Drive Automatic 125000 miles
First engine would hesitate. It was the catalyst converter. I got that replaced and while I was doing that I changed both O2 sensor (the 1 in front and the 1 behind the converter). After that the engine light came on.
Thats when I got the code P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1). I checked the fuse to the sensors and it was good.
After this I took it to another mechanic he said that it might be the MAP and the Air Flow Meter(MAF).
Let me put that in the morning when I turn it on when the engine is cold and Im waiting to warm up. The RPMs go up to 2RPMs and goes down to.5 RPMs almost wanting to shut off.
What should I do next or what do you think it is?
Thursday, November 12th, 2009 AT 2:17 PM