
Luis Garcia


Can someone tell me if the red or blue arrow is pointing at the knock sensor pls??? (2004 Sentra)
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gennady gurov







no, that's the pcv valve

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Luis Garcia


Which is the knock sensor, red or blue or neither? 
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gennady gurov







neither, the knock sensor is going to be facing the firewall, on the back of the block.

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Justin


Download the FSM, it will show you where the knock sensor is. Its been a while but I think the knock sensor on the 1.8 is on the side where the belts our. coudl be wrong though.

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