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False knock causing p0327?

outonthetiles

outonthetiles

New member
I have a 2002 Impala LS that I'm trying to get inspected in NY. It's throwing 2 codes, a P0135 and a P0327. I'm going to replace the oxygen sensor for the P0135, but I don't know how to diagnose and repair a P0327. This car is very high mileage and has a pretty major exhaust leak and the manifolds leak alittle when they're cold. I'm wondering if this could cause enough false knock to confuse the PCM into throwing a P0327?
 


I don't know it's false knock. I'm trying to eliminate the idea of loud exhaust leaks/leaky manifolds causing false knock enough for the PCM to set a P0327. I am asking if that's something that is possible, or if it is definetly the knock sensor/wiring.
 
On both sides of the engine under the manifolds.

2012-04-17_19-25-30_282.jpg
 


Thank you. Does anyone know if there is a procedure to test the sensor with a multimeter?

Bank 1 sensor 1 would be the front of the engine I'm hoping?
 


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