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knock sensor question

brus brother
in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

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Is it possible that a faulty knock sensor would account for pinging under strain even without throwing a code or CEL?

Yes it still might have the correct resistance reading but may not produce a signal to the ECM .

The ECM only looks at the resistance reading to monitor wether to trip the CEL or not on the knock sensor circuit

 

SEA#3

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