Thread: Open loop while crusing
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01-24-2005 08:51 AM #1
Open loop while crusing
I have a 1987 El Camino with late model 350 and using the computer controlled carb. While crusing 45 to 50 MPH I get a code 13 on the ECM. It will clear if you accelerate. Engine is equipped with headers and the oxygen sensor is in the pipe after the collector. Scanner shows every thing worknig proper when in closed loop. I have held engine at 1500/2000 steady and watched it go to open loop. I feel the oxygen sensor may be cooling off at cruising speed. Would a heated O2 sensor cure this possibly?. Apoligise for the long post.
I finally fixed that annoying noise in the car. I just opened the door at 60mph and pushed him out. .
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