Quote:
|
Originally Posted by TxFireman
Wrong forum.. LOL
The knock sensor adjusts the timing when detonation occurs etc. So it constantly monitors the timing, and adjusts as needed. I have no idea of it's location on the H3's 5 cylinder. I know where it's located on a older small block GM V8, and it's easy enough to change out on one of those... if it's not being stubborn and hard to turn.
They used to put the sensor on the lower half of the block near the freeze plugs. Under the intake sounds like a real PIA place to put it.
|
Actually, a knock sensor does not monitor the timing and it certainly cannot adjust the timing as required.
The knock sensor detects frequencies, and outputs a voltage signal to the PCM based up on the frequency detected. The PCM monitors the frequency output of the knock sensor and when a specific frequency range is detected it will adjust engine timing to reduce the knock. Most of the modern PCM's actually learn the engine since all engine output noise.
As for how to change, Paragon explained that quite well.