Let me start of by saying who ever worked on this car before I owned it completely screwed just about everything up on the car, most of which I have fixed or am fixing at this moment. I replaced the transfer pipe on the tank since it was crimped in two spots which I thought would have fixed the fueling cut out issues when turning right but as of today it's back (haven't driven it that hard up until today). Not sure what would be causing this since that tube has been replaced and seems to be flowing well.
My other problem is the motor seems to pull a bunch of timing on WOT runs at high rpms. Normally below 4,000 rpms its great then it starts pulling timing and eventually stops accelerating up near 5,000 rpms. It doesn't do this everytime but it does it so much that I just don't drive it fast. I think it might be bad gas but I added Sunoco 94 to the half a tank of Shell 93 (which locally is bad gas apparently) and it seems to do it about the same.
Haven't checked the fuel pressure yet, but I think thats where I will go next. I do believe this motor is chipped but I am not sure what chip it has.
Things I have replaced that could be related to all of this.
transfer pipe on tank
fuel filter
spark plugs
ran seafoam through the gas
So any help or suggestions would be greatly appreciated.
Topic: M42 hesitation problems + possible fueling issues (Read 4065 times)