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Ok. My 331k 1990 244 has been running a bit better since a bottle of redline fuel system cleaner went in.
The symptoms were poor low RPM power at partial throttle(worse at cold engine temps). I reset the computer and then the car would not idle for the first few minutes. After a short drive the idle fixed itself, and the car was hesitating less.
Today, I took a long drive today(100 miles each way) and the check engine came on, the car was running well, and kept feeling stronger all day.
I am getting the following codes:
231- fuel system compensating for rich or lean condition at cruise
221- fuel system compensating for extremely rich or lean condition at cruise
113- fault in fuel injectors
Any ideas here? I was expecting an O2 sensor issue, but that code did not come up.
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