code 43.. ever not a knock sensor and which one if it is?
Thread Starter
Melting Slicks
Joined: Jun 1999
Posts: 2,872
Likes: 3
From: Wilmington NC
code 43.. ever not a knock sensor and which one if it is?
just as title says, I am showing an intermittent code 43.. sometimes on sometimes off.. any reason other then a bad knock sensor.. I have had this problem a few years back and changing one of the knock sensors cured it. is there a way to test a knock sensor? to dial in which one is bad? I wish I had remembered which one it was but after the 355 rebuild, they just kinda found their way back into the block and I don't know which was the new one and which was the old one.
thanks in advance!
Chris
thanks in advance!
Chris
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
If you have a scanner you could do a data log with the key on engine off and hit the block with a hammer near the knock sensors and see if it picks it up...that's about the only test I've ever seen for a knock sensor.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by lcvette
just as title says, I am showing an intermittent code 43.. sometimes on sometimes off.. any reason other then a bad knock sensor.. I have had this problem a few years back and changing one of the knock sensors cured it. is there a way to test a knock sensor? to dial in which one is bad? I wish I had remembered which one it was but after the 355 rebuild, they just kinda found their way back into the block and I don't know which was the new one and which was the old one.
thanks in advance!
Chris
thanks in advance!
Chris
If the resistance is correct you may have an intermittent open circuit. The PCM just looks for this reisistance to check its circuit. You can even place a resistor of that value to ground and the PCM wouldn't know any better, the bad thing is that there would be no KR if its needed!
