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Persistent P1124 - Help!!!
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Posted by Wayne-Canton [Email] (more from Wayne-Canton) on Thu, 29 Jan 2009 18:01:34 Share Post by Email
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i have a 98 900s 2.3 non turbo. I have checked and corrected vacuum leaks. I have corrected an engine misfire, replaced a weak battery, plugs (with NGK), wires and oxygen sensors, and I am still getting P1124. The readings, as best I can tell, for the MAF sensor are good so I have not replaced it yet.

When I hook up my OBD-II reader, with the engine idling steady, the readings for the first oxy sensor jump all around and occasionally/briefly read N/A. The STFT numbers seems to jump in response to the oxy sensor voltage. Is this normal? If not, assuming the reader is correct, what could be causing the OBD-II readings to jump? The wiring and connectors look good. Does this sound like it could be a faulty PCM?

Thanks in advance.

Wayne
Canton, Ga

posted by 98.18.3...

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