Skip the auto shop - Our mechanics make house calls

Q: Having trouble trying to locate my knock sensor. It's throwing a code for it. 1,2,4,5,6 cylinder misfires

asked by on

Having trouble trying to locate my knock sensor. It's throwing a code for it. 1,2,4,5,6 cylinder misfires Could the knock sensor cause the misfires? And where do I locate knock sensor on my type 01 Jetta vr6 2.8L 12V
My car has a manual transmission.

A: As you may know a knock sensor may fail for...

As you may know a knock sensor may fail for any of the following reasons:

  • The knock sensor is faulty and needs to be replaced
  • There is a wiring open/short/fault in the knock sensor circuit
  • The PCM/ECM has failed

Any of the above could potentially cause a misfire. The knock sensor should be located under the intake manifold between cylinders #1 and 2.

If you need assistance with this, consider YourMechanic, as one of our mobile technicians can come to your home to diagnose the misfire firsthand and help you fix it accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car lurches and then jumps out of gear

Hi there. Most of the time, this jumping out of gear is caused by the shifter assembly. Part of the assembly breaks internally and keeps the shifter from staying in gear. It can also be a failure in the shift...

Q: Car stalls, hesitates, misfires - 1998 Oldsmobile Delta 88

There are several potential problem areas (besides fuel supply which you seem to have addressed), which could cause lean running and the symptoms you describe. A dirty throttle body, failing mass air flow sensor, vacuum leak, or bad oxygen sensor...

Q: Car won't start - 2003 Volkswagen Passat

Hey there. Unless you've been experiencing other symptoms, it's probably not the fuel pump. But that's easy enough to determine by performing a fuel pressure test. A car that struggles to idle and then dies might have trouble with a...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...