Do Knock Sensors throw codes?
Thread Starter
Safety Car
Joined: Nov 2007
Posts: 4,436
Likes: 875
From: Bay Area CA
Do Knock Sensors throw codes?
I have a 2008 LS3 which are known to have sensitive knock sensors. If a knock sensor is triggered, does it throw a code or CEL light? Does a false knock or burst knock throw a code? Thanks for any response.
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
If there's knock detected, and timing is pulled, and the knock sensor still reports knock, it can set a KS perf code, but that's only if the condition is persistent, after timing is retarded.
If there is a problem with the circuitry involving the knock sensor, open or grounded, or otherwise out of range, then a code will be set.
For the most part, knock sensors do their job, and never set codes. On the 08s, and other E38s in general, they're pulling timing constantly, and they never set codes.
Thread Starter
Safety Car
Joined: Nov 2007
Posts: 4,436
Likes: 875
From: Bay Area CA
When a knock sensor detects knock, or false knock, it does not set a code. It just does it's job, lets the computer know, and timing is pulled.
If there's knock detected, and timing is pulled, and the knock sensor still reports knock, it can set a KS perf code, but that's only if the condition is persistent, after timing is retarded.
If there is a problem with the circuitry involving the knock sensor, open or grounded, or otherwise out of range, then a code will be set.
For the most part, knock sensors do their job, and never set codes. On the 08s, and other E38s in general, they're pulling timing constantly, and they never set codes.
If there's knock detected, and timing is pulled, and the knock sensor still reports knock, it can set a KS perf code, but that's only if the condition is persistent, after timing is retarded.
If there is a problem with the circuitry involving the knock sensor, open or grounded, or otherwise out of range, then a code will be set.
For the most part, knock sensors do their job, and never set codes. On the 08s, and other E38s in general, they're pulling timing constantly, and they never set codes.
