Hi everyone,
As most people know my car has had an intermittent hesitation problem for over 2 years, and I've still not got to the bottom of it. /ubbthreads/images/graemlins/bang.gif
Anyway, a couple of weeks ago I felt I should throw a bit of money at it, and booked it in with Awesome GTi just round the corner.
They (Andy and Jim) were very friendly and very helpful. I gave them lots of info on what I have already tried etc. Which they appreciated.
Their investigation was not fully conclusive, but it was highly likely that it was the MAF sensor. They said it had thrown an error code, but unfortunately the mechanic had not saved the code before clearing it.
Anyway, I asked them to try out a new MAF and see if the car was any better. I also asked Jim to put it on their rollers.
Jim compared a brand new MAF and the alledged "faulty" one on my car. During the rolling road testing (12 runs in all), both MAF's performed fine. And no hesitation occurred.
I kept the "faulty" MAF fitted as I intended to get it replaced under warranty yesterday at the dealers. Which they didn't because no errors were reported.
Anyway.....the result of the rolling road at Awesome-GTi (DynoJet WinPep 7) was:
195.63 bhp and 201.01 lbft @ wheels
Run conditions: 77.8 degF, 30.24 in-Hg, Humidity: 35% DIN: 1.00
Jim and Andy said add approx 40 to the bhp figure to get the figure at the flywheel. Apparently the software/rolling road struggles with Haldex in trying to work out the rolling resistance to get the flywheel figure.
What do you think?
I know this is a very different rolling road to others out there. So is 40 about right to add?
AL
As most people know my car has had an intermittent hesitation problem for over 2 years, and I've still not got to the bottom of it. /ubbthreads/images/graemlins/bang.gif
Anyway, a couple of weeks ago I felt I should throw a bit of money at it, and booked it in with Awesome GTi just round the corner.
They (Andy and Jim) were very friendly and very helpful. I gave them lots of info on what I have already tried etc. Which they appreciated.
Their investigation was not fully conclusive, but it was highly likely that it was the MAF sensor. They said it had thrown an error code, but unfortunately the mechanic had not saved the code before clearing it.
Anyway, I asked them to try out a new MAF and see if the car was any better. I also asked Jim to put it on their rollers.
Jim compared a brand new MAF and the alledged "faulty" one on my car. During the rolling road testing (12 runs in all), both MAF's performed fine. And no hesitation occurred.
I kept the "faulty" MAF fitted as I intended to get it replaced under warranty yesterday at the dealers. Which they didn't because no errors were reported.
Anyway.....the result of the rolling road at Awesome-GTi (DynoJet WinPep 7) was:
195.63 bhp and 201.01 lbft @ wheels
Run conditions: 77.8 degF, 30.24 in-Hg, Humidity: 35% DIN: 1.00
Jim and Andy said add approx 40 to the bhp figure to get the figure at the flywheel. Apparently the software/rolling road struggles with Haldex in trying to work out the rolling resistance to get the flywheel figure.
What do you think?
I know this is a very different rolling road to others out there. So is 40 about right to add?
AL