Knock Sensor Wiring Diagram

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Knock sensor wiring diagram. To check the circuit you will need a wiring diagram for colour codes and a pinout diagram of the ecu. Locate the knock sensor. The component is found on the engine manifold mounted beneath the intake manifold in the middle of the engine. After completing the project and driving the 4 runner.

Notice that it also connects to the shielding and ground for the o2 sensor i didn t worry about that on my car since i ve eliminated the factory o2 sensor. To me the most interesting part about the knock sensor is that it only has one wire going to it. This section will contain general information on how to troubleshoot wiring harness and repair connector procedures. 5a alt s 40a am1 30a am2 120a alt 3 ii1 n p 9 w 6 3 ea1 9 ii1 to engine control module 2 9 1 2 b 11 a 1 1 1 2 22 ign 2.

I installed new head gaskets on my toyota 3 0 3vze and spaced changing the knock sensor although it had not issues prior to dis assembly. The check engine light and knock sensor related obd codes will immediately point a technician to the knock sensor. The reason for this is the sensor generates its own voltage and is case grounded. If the conclusion is that the knock sensor needs to be replaced then it is often recommended to replace not only the sensor but the knock harness as well.

The diagram is a little deceiving b c the grounding of the shielding to the knock sensor ground wire and chassis happens inside the car right next to the ecu rather than in the engine bay. The location will vary slightly by manufacturer. Our honda parts and accessories are expedited directly from authorized honda dealers strategically located all across the u s. 1 4runner electrical wiring diagram 23e 2 7 am2 8 6 b w am1 4 st2 ig2 2 ig1 p 1 park neutral position sw 3e 2 1 3 5 7.

Conduct a visual inspection of the knock sensor wiring and any connections to the knock sensor to make sure there are no signs of disconnection tearing etc. If drive around with the check engine light on when a code p0332 or a p0327 is set in the computer memory engine damage could occur. Knock sensor is usually screwed firmly into the middle of the cylinder block just below the head gasket. 1 knock sensor 2 12a 2 female documents similar to ford wiring diagrams.

The knock sensor is basically a listening device a microphone and they are very reliable. Refer to your repair manual for an exact diagram. To ensure reliability purchase honda part 30531 rca a01 sub wire knock sensor.