Question about 2006 Saturn ION 3
The knock sensor code (p0236) went off four days after i bought the car so we replaced it and not two days later the code went off again. Thought i had gotten bad gas and that was what was causing the light to come on so I got better gas and fuel injector cleaner hoping that would cause the light to go off but it didn't. Took it back to dealer to have them diagnose and fix, but they got the same p0236 code and replaced the knock sensor as well, but again a couple days later and the light was back on.
Is there a knock in the engine? If the motor rattles, the knock sensor will think its pinging and retard the timing to compensate. This will set the code.
Posted on Apr 06, 2015
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Posted on Jan 02, 2017
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