Code 42
Thread Starter
Pro
Joined: Apr 2001
Posts: 744
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From: Lenoir City TN
Code 42
91 L98, it started yesterday shutting off after it got hot. After I let it cool down it would start and run normal until he heated up again. It set a code 42 which I can track using my Helms manual. I just thought I would ask if anyone had this happen and maybe could give me some direction. I hate intermentant problems. This forum is such a wealth of information and usually someone has experience the problem before.
Thanks in advance for any suggestions!!!
Thanks in advance for any suggestions!!!
Thread Starter
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
Drifting
Joined: May 2013
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From: Reno Nevada
Melting Slicks
Joined: May 2010
Posts: 2,082
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From: Conowingo Maryland
IV had this code set on different cars for different reasons like someone else said check the connection where the set timing connection is at. If that is good pull the cap make sure all the connection going to the module are pluged in tight and clean. Iv seen the connection going to the module back out do to age of the plug so you have to litterly pull the connection off the module and look to see if the wires are pusshed all the way into the plastic block check this carefully cause it is hard to see. If this is not the problem I would hightly expect module. Please check the connection at the module real real good
Thread Starter
Pro
Joined: Apr 2001
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From: Lenoir City TN
Last edited by cshuman; Jun 18, 2014 at 06:40 AM.
Thread Starter
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
Thanks mrwillys and hooked, I'm checking these connections. I'm also leaning toward the module. I cleared the ECM and it started and ran good until it got hot. Then it started the higher idle, shutting off. When it would restart it would go thru the same. I checked the fuel pressure and it is fine. I also noticed that the IAC counts are very low when it first started and ran correctly then jumped to zero when it would act up. It didn't set a code this time. I'm thinking it could be the ECM or the ignition module.
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Thread Starter
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
Found the problem. I had put a small cap distributor on it months back and crimped the insulated connectors onto the wires. One of the wires had backed out and became intermittent. With resistance comes heat and it would open, when it cooled it would reconnect. I soldiered them on and that solved the problem. Thanks for everyone's input!!!