Missing module 4 from code retrieval
Thread Starter
3rd Gear
Joined: Aug 2013
Posts: 3
Likes: 0
Missing module 4 from code retrieval
I'm a new member. I have a '95 lt1 "p" motor with a intermittent miss. After following the procedure to ground the proper lead in the OBD2 /but really OBD1 connector. the car displays the module 1 info as ---, then module 9 as ---, the module A as ---. try as I may there is no output from module 4. The car starts smoothly , runs fine , then as it warms up gets rough. Service lamp comes on, fans kick in and it smooths out , but misses slightly at cruising speed. Has a bad EGR and plugged PCV which helped a lot. Has anyone ever seen this module four thing? Even though I get the light there are never any codes retained. I suspect because no module 4. Thanks for any help.
Team Owner
Joined: Sep 2003
Posts: 25,366
Likes: 2,732
I'm a new member. I have a '95 lt1 "p" motor with a intermittent miss. After following the procedure to ground the proper lead in the OBD2 /but really OBD1 connector. the car displays the module 1 info as ---, then module 9 as ---, the module A as ---. try as I may there is no output from module 4. The car starts smoothly , runs fine , then as it warms up gets rough. Service lamp comes on, fans kick in and it smooths out , but misses slightly at cruising speed. Has a bad EGR and plugged PCV which helped a lot. Has anyone ever seen this module four thing? Even though I get the light there are never any codes retained. I suspect because no module 4. Thanks for any help.
Last edited by WVZR-1; Aug 28, 2013 at 08:15 PM.
Thread Starter
3rd Gear
Joined: Aug 2013
Posts: 3
Likes: 0
lack of module 4
I have an obd Ii scanner. The car will not link to it because it is not a FULL obdii compliant set up. I really was politely looking for ideas , not rude treatment from some twit. Hate these foruns
Burning Brakes
Joined: Nov 2010
Posts: 855
Likes: 36
From: Crystal Springs MS
I see you're a new member...if you're gonna get butthurt this easy you may want to go to another forum where you'll get all kinds of lame-*** replies. These guys really want to help you...if you'll let them.
Thread Starter
3rd Gear
Joined: Aug 2013
Posts: 3
Likes: 0
butthurt?
Interesting term I understand the difference between obd1and 2 and am following the procedure fully. No module 4 comes back. If I wanted to deal with rude people I'd geta BMW. I'm done here..... Dude!!!
