- Joined
- Jul 15, 2011
- Messages
- 12
- Points
- 1,601
- Vehicle Year
- 1994
- Transmission
- Manual
I have a '94 Supercab with a 4.0. I can't get it to do a KOER test to save my life. it will do a KOEO but, not the running test. I've tried three different types of scan tools and nothing. Any ideas?

