power ... where are you?? (help needed)
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New Member
Joined: May 2002
Posts: 14
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power ... where are you?? (help needed)
Last month I had a GIAC chip installed in my 98.5 A4 1.8TQM. You couldn't wipe the stupid grin off my face as I was being thrown to the back of my seat.
Last week, however, I lost the "umpf", and now the car feel more-or-less stock. I can't even be sure that the turbo is spooling anymore.
I put the key in the "on" position (without starting the car) to re-synchronize things, but no luck. I even unplugged the battery in hopes of resetting the ECU, but still no change.
What could be wrong? Is it the ECU? The turbo? The DV valve? (I had a Forge installed 3 years ago in anticipation of future power upgrades)
History - half a year ago I installed a Milltek cat back. It seemed a little louder than expected based on comments in the post, but the installer couldn't find a cause for it (it's "normal"). Now around the same time as my power-outage it seemed that the exhaust got even louder. Can they be related? Possibly a leak at one of the joints throwing the O2 sensor readings out of wack?
Help!
1998 A4 1.8TQM
GIAC Stage 1
Milltek Exhaust
Forge DV Valve
Brembo Rotors
EBC Pads
Spec Stage 2 Clutch
Spec Steel Single Mass Flywheel
Last week, however, I lost the "umpf", and now the car feel more-or-less stock. I can't even be sure that the turbo is spooling anymore.
I put the key in the "on" position (without starting the car) to re-synchronize things, but no luck. I even unplugged the battery in hopes of resetting the ECU, but still no change.
What could be wrong? Is it the ECU? The turbo? The DV valve? (I had a Forge installed 3 years ago in anticipation of future power upgrades)
History - half a year ago I installed a Milltek cat back. It seemed a little louder than expected based on comments in the post, but the installer couldn't find a cause for it (it's "normal"). Now around the same time as my power-outage it seemed that the exhaust got even louder. Can they be related? Possibly a leak at one of the joints throwing the O2 sensor readings out of wack?
Help!
1998 A4 1.8TQM
GIAC Stage 1
Milltek Exhaust
Forge DV Valve
Brembo Rotors
EBC Pads
Spec Stage 2 Clutch
Spec Steel Single Mass Flywheel
New Member
Joined: Sep 2002
Posts: 238
Likes: 0
The same thing happened to me 3 years ago. I was disappointed with the power output
and installed an APR chip. It did okay for a bit, but then felt weak (and I wasn't hearing the turbo either). I think that my turbo was going out and the more aggressive programming finished it off. I bought a used KO3, but then ended up upgrading to a Stage 3. I would check the turbo. BTW, mine didn't throw a code
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