2many diesels
Veteran Member
- Joined
- Mar 20, 2011
- Location
- Nor Cal
- TDI
- rabbit pickup 1z swap Audi A4 Quattro ALH. 02 Beetle TDI. 99 Golf TDI. 03 Wagon TDI. 914 Porsche ALH t
I have a car in my shop I am trying to diagnose.
1999 Jetta, 259k. Start the car and it revs fine. Hit the road and put a load on it, it looses power and sputters badly.
Intake is clean compared to most I have seen, new fuel filter. Vac lines are recent and look to be correct. Checked MAF in vagcom and actual very closely matches requested, timing is correct. When I first checked the car, IQ was about 9 and bouncing around. Did hammer mod and brought it to around 3.8 and stable, no change. Not showing any codes. I am suspecting the IP...any thoughts.
1999 Jetta, 259k. Start the car and it revs fine. Hit the road and put a load on it, it looses power and sputters badly.
Intake is clean compared to most I have seen, new fuel filter. Vac lines are recent and look to be correct. Checked MAF in vagcom and actual very closely matches requested, timing is correct. When I first checked the car, IQ was about 9 and bouncing around. Did hammer mod and brought it to around 3.8 and stable, no change. Not showing any codes. I am suspecting the IP...any thoughts.
