92 GM codes

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

Here ya go dapopes

111 System checks OK


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

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?

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.

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