How does the Check Engine light knock sensor work?
Check engine light – knock sensor. The computer adjusting the timing to compensate does not prevent the knock sensor from triggering a CEL. The computer reacts to the knock sensor’s signal, which also triggers the CEL. The timing adjustment is to compensate for a problem, the CEL is to tell you that the problem exists.
Are there any knock sensor problems on GM trucks?
Knock Sensor Problems on GM Vehicles. Knock sensor problems are common on 1999-2007 Chevy Silverado, Express Van, Tahoe and Suburban trucks. Of course, this means that the GMC Sierra and Yukon of the same years have the same issues.
What is the code for the knock sensor?
The code read knock sensor. Before I could get it into a shop, it went off. It didn’t come back for 11 months. When it did come back, the same code was read. Again, it went off the following day before it could be looked at and hasn’t been seen since.
What does the knock sensor on a Honda Blackbird mean?
The Knock Sensor is simply doing its job. I agree with Honda Blackbird, but I wanted to add that all of this could be an indication that the engine is running too hot when the A/C is engaged, because knocking is much more likely to occur when the engine is running too hot. I would suggest that the OP check his coolant level.
What should I do if my knock sensor goes off?
If the knock sensor detects an abnormality, the computer will let you know with the Check Engine Light. If the Check Engine Light turns on, have a certified mechanic inspect your vehicle as soon as possible.
What are the codes on the Subaru knock sensor?
Generally codes P0325, P0326, P0327, and/or P0328 may be present. P0326 Knock Sensor Circuit Performance (might not be applicable to Subaru’s). These codes mean the ECU has detected an electrical issue with the knock sensor circuit. It does not mean the ECU is detecting knock.