brandnew161
10+ Year Contributor
- 215
- 2
- Mar 30, 2009
-
Horseheads,
New_York
Alright first i want to say that i searched and could find similar topics but nothing specific. I'd like to narrow down my search as this car is a prospective purchase by wednesay this week. Hence I would like to have some idea of the problem.
Car, 1995 eagle talon tsi AWD. Car was fully rebuilt including paint job and new suspension. My buddy bought it and now passing it off to me.
Problem:
At first the car was not drivable at all, car would bog horribly and had no get up and go. We then did a boost leak test and there was a leak at the injector cyl 3. Bought a new O ring kit and replaced all injector seals. No more air leak. Started car up, a little better but not much. We then noticed that the fuel pressure was low, the gauge was reading 20psi at idle. We replaced the fuel filter and then the pressure went up to 30psi on startup but settled at 26-27psi at idle. Took the car for another test drive and surprisingly made an improvement, the car runs okay but you still cant "floor it", when you do attempt to spool up the turbo the boost gauge will fluctuate between 0-5-10.
Our opinion now is that the fuel pump may be bad. However the fuel pump is new, we didnt pull it out and dont know the brand except that it is a high flow pump and hardwired. Also there are no leaks in the lines. Now get this, a week or two ago my buddy removed the FPR and the car ran fine, no problems until a few days ago. Any relation? When looking at the fuel pressure guage we also noticed that pressure drops immediately as the key comes out of the ignition. What holds the pressure? If i can narrow down the symptoms to be fuel delivery related what parts should i suspect...pump, sending unit..?
I appreciate any help, this is my first experience working on a tsi and i hope i can fix the problem so that i can buy this baby
Car, 1995 eagle talon tsi AWD. Car was fully rebuilt including paint job and new suspension. My buddy bought it and now passing it off to me.
Problem:
At first the car was not drivable at all, car would bog horribly and had no get up and go. We then did a boost leak test and there was a leak at the injector cyl 3. Bought a new O ring kit and replaced all injector seals. No more air leak. Started car up, a little better but not much. We then noticed that the fuel pressure was low, the gauge was reading 20psi at idle. We replaced the fuel filter and then the pressure went up to 30psi on startup but settled at 26-27psi at idle. Took the car for another test drive and surprisingly made an improvement, the car runs okay but you still cant "floor it", when you do attempt to spool up the turbo the boost gauge will fluctuate between 0-5-10.
Our opinion now is that the fuel pump may be bad. However the fuel pump is new, we didnt pull it out and dont know the brand except that it is a high flow pump and hardwired. Also there are no leaks in the lines. Now get this, a week or two ago my buddy removed the FPR and the car ran fine, no problems until a few days ago. Any relation? When looking at the fuel pressure guage we also noticed that pressure drops immediately as the key comes out of the ignition. What holds the pressure? If i can narrow down the symptoms to be fuel delivery related what parts should i suspect...pump, sending unit..?
I appreciate any help, this is my first experience working on a tsi and i hope i can fix the problem so that i can buy this baby