Knock sensor code.do I really need 2 replace 4 smog. if is bad would it pass smog in ca,.
If the code is p0325, it should be repaired, HOWEVER, on nissan products from 1996 to 2002, a p0325 does NOT illuminate the check-engine lamp. Knock sensor on that vehicle is for PING control not for emissions reduction. On other vehicles (say a chevy with a p0325) it WILL light the check engine lamp which is an automatic smog fail.
SOURCE: 1996 Nissan Maxima 2.5 V6 Engine Knock sensor
The knock sensor is a major pain in the a..s to change I would suggest taking it to a reputable shop for a second opinion to see if they realy performed the work. Also with OBD11 (2) diagnostics if you have multiple misfires its not the wires its something else, also if you got a code for a misfire it would be specific as to which cylinder is misfiring. My best guess would be to get your coil checked.
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SOURCE: o2 sensors and knock sensor keep triggering check
IF YOU REPLACE SENSORS YOU HAVE TO ERASE PCM CODE TO TURN OFF CHECK ENGINE LIGHT.IF YOU DONT IT WILL KEEP LIGHTING UP.
SOURCE: How to replace knock sensor in 1995 NISSAN ALTIMA?
Remove the intake manifold ,remove radiator ,remove radiator intake and outake housing, remove fan ,remove all belts: power steering, alternator and if you have a/c, remove harmonic balancer ,remove timing belt covers, remove timing belt remove intake housing once you have remove all the above, your engine will look naked, you can see the location of the knock sensor is locate in the engine valle.
SOURCE: 2000 nissan frontier knock sensor code & distributor
no but the knock sensor does send a signal the ecm and it will ****** or advance the distributor timing
SOURCE: code P0325 Knock sensor 1 circuit malfunction
Code P0325 Knock sensor 1 circuit malfunction (bank 1 or single sensor)
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