JBAirborne
Probationary Member
- 7
- 0
- Feb 9, 2010
-
Clarksville,
Tennessee
I've got one more issue I haven't worked through yet, I'm having *horrid* MPG issues and I can find no real answer. No codes thrown in over 4 tanks of gas, and nothing really abnormal about the car. Only thing I have found so far is a pretty good size boost leak from the TB shaft seals, waiting on parts right now but other than that...
My car pulls really hard up to about 5/6 lbs and after that you can't feel it boost anymore, but my MPG is really bad and I;ve done everything... I get around 9 to 11.5 mpg with conservative driving, shifting at 2700-3200, same affect as shifting at 4500-5000... I just don't understand, new NGK plugs at 0.28, new upstream O2, air filter is good, MAF is good, IAC seems fine no real idle issues except for I have some really hard starts sometimes to where it will start and just die or start and idle at 150-250 until I step in the pedal and help build the vac back up...
Any ideas about the MPG? I think it's causing my stuttering also, but it ONLY stutters in first or reverse when initialy taking off, no matter how high the rpm it will drop dramaticly. First I can almost take off smoothly if I am RPM'd up to 2000 or so but trying to ease off the clutch and ease in the gas gets me a whole car shaking effect but won't die just bogs down a ton. After that drives just fine.
Any help is really appreciated, I really love the car and have sank over 2400 restoring the engine so far because I love the car that much. Thanks!
My car pulls really hard up to about 5/6 lbs and after that you can't feel it boost anymore, but my MPG is really bad and I;ve done everything... I get around 9 to 11.5 mpg with conservative driving, shifting at 2700-3200, same affect as shifting at 4500-5000... I just don't understand, new NGK plugs at 0.28, new upstream O2, air filter is good, MAF is good, IAC seems fine no real idle issues except for I have some really hard starts sometimes to where it will start and just die or start and idle at 150-250 until I step in the pedal and help build the vac back up...
Any ideas about the MPG? I think it's causing my stuttering also, but it ONLY stutters in first or reverse when initialy taking off, no matter how high the rpm it will drop dramaticly. First I can almost take off smoothly if I am RPM'd up to 2000 or so but trying to ease off the clutch and ease in the gas gets me a whole car shaking effect but won't die just bogs down a ton. After that drives just fine.
Any help is really appreciated, I really love the car and have sank over 2400 restoring the engine so far because I love the car that much. Thanks!