Quote Originally Posted by sbflyer View Post
The MAF is clean. No Goo. Not sure I'd call it butchered but if you say so. Only off road. One of the headers broke and a replacement was installed a while back. No leaks in the exhaust system and O2 sensors are connected. The motor ran great for years with it's existing configuration. It only recently had issues after being stored for six months. I think I'll just start testing all the sensors one by one and go from there. Thanks for the helpful input.
SBFlyer. based on the fact that your engine ran great for several years as it's configured I agree with you, I wouldn't see any reason to be concerned with the MAF placement or other sensors either. The fact that it only developed issues after sitting idle for six months? I think you're on the right track to test sensors as you mentioned. Seems like you're likely looking for a corroded rheostat surface or corroded contact points. Denny gave links to a whole bunch of OBD wiring diagrams, and with time you should be able to figure out what those cut wires went to, and if you're dealing with OBDI or II. Wish I could help you with how to pull codes other than using a reader, but I can't. Best of luck with your search.