82 Owners - code 42
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
82 Owners - code 42
My distributor module went out. Replaced it. Now get a code 42.
What's that. Shop told me EST - electronic spark timing. Car runs great, it seems to be running better. But, what is cause. And, Check Engine Light stays on. An open ground or something?
Twin_turbo - Help!
What's that. Shop told me EST - electronic spark timing. Car runs great, it seems to be running better. But, what is cause. And, Check Engine Light stays on. An open ground or something?
Twin_turbo - Help!
Melting Slicks
Joined: Aug 2000
Posts: 2,310
Likes: 1
Re: 82 Owners - code 42 (Larry82)
I don't have an '82, but FWIW, my Haynes manual says, for a code 42:
"Electronic Spark Timing bypass circuit or EST circuit is grounded or open. A malfunctioning HEI module can cause this code".
Sounds like you already knew that.
Is it leftover from the failed dist. module?
If you diconnect the battery will it clear the old codes?
Are you sure the new module is connected correctly?
[Modified by jerryp58, 8:52 PM 4/11/2003]
"Electronic Spark Timing bypass circuit or EST circuit is grounded or open. A malfunctioning HEI module can cause this code".
Sounds like you already knew that.
Is it leftover from the failed dist. module?
If you diconnect the battery will it clear the old codes?
Are you sure the new module is connected correctly?
[Modified by jerryp58, 8:52 PM 4/11/2003]
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Re: 82 Owners - code 42 (jerryp58)
I think you are right on topic.
I still had my original module and put it back in. When installing it, I think the four pin connector might have been put in upside down, if that is possible. Anyway, if not, the original is back in, and everything works. No codes, etc.
And, found that code 42 means HEI module failure. Which, again, leads me to think that the replacement was installed wrong.
Now on to the next problem.......
I still had my original module and put it back in. When installing it, I think the four pin connector might have been put in upside down, if that is possible. Anyway, if not, the original is back in, and everything works. No codes, etc.
And, found that code 42 means HEI module failure. Which, again, leads me to think that the replacement was installed wrong.
Now on to the next problem.......
