A
Anonymous
Guest
Hi,
I have only got my GTIR a few months ago and have just had a 5" decat Mongoose exhaust added. The only other engine mod is an HKS green mushroom filter. My problem is this:
- The car is very quick at the start of my journey (when cold)
- Lots of blue smoke when I change gears (clouds of the stuff!)
- When warm, the car seems to struggle at 4000 revs (loses acceleration) and there is a lot of popping and noise from the exhaust
- Again, lots of popping/backfiring when I have accelerated hard and have taken my foot off the pedal. Now I know that popping is just unburnt gases, but there is loads of it - is this normal.
(The above has only started since I put the exhaust on)
Is there a shortage of fuel going to the engine?
Something wrong with the back pressure?
Any help/comments greatly appreciated!
Tailz
I have only got my GTIR a few months ago and have just had a 5" decat Mongoose exhaust added. The only other engine mod is an HKS green mushroom filter. My problem is this:
- The car is very quick at the start of my journey (when cold)
- Lots of blue smoke when I change gears (clouds of the stuff!)
- When warm, the car seems to struggle at 4000 revs (loses acceleration) and there is a lot of popping and noise from the exhaust
- Again, lots of popping/backfiring when I have accelerated hard and have taken my foot off the pedal. Now I know that popping is just unburnt gases, but there is loads of it - is this normal.
(The above has only started since I put the exhaust on)
Is there a shortage of fuel going to the engine?
Something wrong with the back pressure?
Any help/comments greatly appreciated!
Tailz