92 GM codes

dapopes · 06-30-2010, 01:08 PM

I read my codes and got a 111 with engine off, and a 412 with engine on. I looked in Hanes, but they don't offer much info. If anyone could help me know what those are, I'd be grateful! Thanks

way2old · 06-30-2010, 05:38 PM

Here ya go dapopes

111 System checks OK

412 Idle speed system not controlling idle properly (generally idle too low) - Idle Speed Control

dapopes · 07-01-2010, 03:52 AM

Thanks for the codes WTO. I don't know why it would say system is fine! It has a very obvious "miss' while idling. I suppose an 02 sensor doesn"t ALWAYS show up eh?

way2old · 07-08-2010, 03:36 PM

The EEC IV system is not very user friendly in that it will not pick up on misfire codes. That system also needs a full scan too,l to read all the sensors. Or if the tool can read Mode $06 it will give you a misfire count or percentage for each cyulinder. Look under test number 53. There will be 8 of them and will show the misfires. Been on vacation and left civilization. No phone, internet or cell phone. Me, wife, dog, boat and lots of adult beverages for a few days.

dapopes · 07-09-2010, 02:45 AM

Thanks for the info! Glad you were able to get away. Welcome back to reallity!!!!!

POST REPLY TO THIS THREAD