Quote:
The countdown begins ...
Hopefully, I've corrected the P0431 code by using the spark plug anti-foulers in conjunction with my O2 sensor. I should know within the next 50 miles or so if the CEL doesn't come one for that code.
While I had my code reader connected to reset the CEL light after finishing the work this evening, I also realized the P0400 code has re-appeared. I tell you, I get no respect with that code. I'm out of ideas on my attempts to resolve it for good.  [/b]
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you havent corrected the problem. you have only fooled the pcm into THINKING it is fixed. the cats are clogged. it only gets worse. then you get stuff like backpressure, overheat, burned valves, headgasket, yada, yada.