Intermittent code 43
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 2,270
Likes: 118
From: N. Babylon NY
Intermittent code 43
Hi,
Car:1992 LT1
I get a code 43 (knock sensor) when I start it up. Then it goes out and sometimes goes on as I drive. What is strange is that even with it on it seems to run fine even at WOT. I checked the circuit as per my Chevy shop manual and everthing checks out.
I am thinking about getting the Ease software to monitor it, however I don't know if that would help.
Could something else give a false code?
Any help would be greatly appreciated.
Thanks,
Steven
Car:1992 LT1
I get a code 43 (knock sensor) when I start it up. Then it goes out and sometimes goes on as I drive. What is strange is that even with it on it seems to run fine even at WOT. I checked the circuit as per my Chevy shop manual and everthing checks out.
I am thinking about getting the Ease software to monitor it, however I don't know if that would help.
Could something else give a false code?
Any help would be greatly appreciated.
Thanks,
Steven
Last edited by STEVEN13; Aug 3, 2004 at 04:54 PM.
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 2,270
Likes: 118
From: N. Babylon NY
Unriced,
Thanks for the advice. This problem first happened at the track (road racing). At that time I also broke my damper, and power steering line o-ring. At first I thought that maybe the code 43 was false due to the wobble in the broken damper or maybe the powersteering fluid that leaked all over the opti.
I now pulled all the plugs and it looks like 4 (all on the same bank) have the look of a compression leak. The plugs were all tight and are bosch. I wonder if the plugs are cracked internally and they leaked? Is that possible?
My next thing I am going to try is a new set of plugs.
Thanks,
Steven
Thanks for the advice. This problem first happened at the track (road racing). At that time I also broke my damper, and power steering line o-ring. At first I thought that maybe the code 43 was false due to the wobble in the broken damper or maybe the powersteering fluid that leaked all over the opti.
I now pulled all the plugs and it looks like 4 (all on the same bank) have the look of a compression leak. The plugs were all tight and are bosch. I wonder if the plugs are cracked internally and they leaked? Is that possible?
My next thing I am going to try is a new set of plugs.
Thanks,
Steven
