vacume line is on the regulator
regardless of having a chip. Nothing does it like a good ole dyno tune. A tuner can only GUESS what A/F to dial in with a mail order tune. I've seen people melt pistons mmmkay. Just be careful. I'm still on a mail order tune and I was at the specific fuel pressure and on a prolonged WOT interstate run I got my headers glowing red, which indicates a lean mixture = melting pistons if you're not too careful, luckily I didnt run it any longer. I pushed the FP up, but that only hides the problem. I'm now running really rich down low. Only a dyno tune can fix this correctly. But Im waiting to get the M112 SC put on first.Josh_Keady said:I didn't know you were running a custom chip. I would say, get your FPR dialed in and see how it runs. If it's not a LOT better, call the guys who did your chip and explain the situation.
Do you ever get the CEL?
Josh_Keady said:I realize that it won't be optimal without getting it on the rollers, but you should be able to get it safe to drive around a little and I'm kinda trying to figure out if he's got more problems than just the tune. It's a beyotch to trailer the car all the way to the dyno to tune it, only to find out that you've got a bad sensor or a wiring problem.
That said, 4.3Lcougar, have you looked at the codes it's throwing?
But are arent certain are you. No. Get the codes read. And also, if you dont have a tune for the engine, the codes it throws can be pertaining to that. ie: lean mixture indicated, rich mixture indicated, EGR flow insufficient (cams can do this)4.3Lcougar said:its hard to read codes only because its OBD1. but i did just get a ebay code reader. so ill try to do that, but i dont feel like that should be a solid source of code info....i can pretty much guess that it will be o2 sensors because of the non-baffled valvecovers i have. (which have been built and corrected).
Thomas said:You will never get the code to turn off on an OBDI car. The same thing happens with mine. But when you told them you had EGR deleted, they just took out the tables for the flow of it, so the computer doesnt adjust anything, it still senses nothing there though. That unfortunately will never change.