TheGT3ofDC
New member
- Joined
- 27 Mar 2017
- Messages
- 13
Afternoon chaps,
My 2014 991 GT3 went into the main dealer with a slight stutter at about 1500 rpm.
The car has been running an after market Sharkwerks bypass exhaust for about a year.
The technician has stated: the Non-genuine exhaust voids vehicle warranty. VAL shows vehicle has been over revved into range 2 and as per bulletin it states maximum engine speed permitted clearly exceeded. Due to the modification to the exhaust this could be the reason the engine has been able to over rev. The non genuine exhaust can cause back pressure issues inside the exhaust and cause misfueling/spark issues due to incorrect info being supplied by the O2 sensors etc.
OK, I appreciate the exhaust mod may change back pressure and presume it could have caused the plugs to have issues (which is what it feels like). I'll get it put back to standard and get the plugs changed and see what it's like.
The over-rev was done a year before I bought it through a Porsche main dealer. There was no mention of the over-rev at the time I wonder if it is normal for a dealer to offer a 2 year warranty on a car that they knew had been over revved?
Happy to hear thoughts on any of the above.
:thumb:
My 2014 991 GT3 went into the main dealer with a slight stutter at about 1500 rpm.
The car has been running an after market Sharkwerks bypass exhaust for about a year.
The technician has stated: the Non-genuine exhaust voids vehicle warranty. VAL shows vehicle has been over revved into range 2 and as per bulletin it states maximum engine speed permitted clearly exceeded. Due to the modification to the exhaust this could be the reason the engine has been able to over rev. The non genuine exhaust can cause back pressure issues inside the exhaust and cause misfueling/spark issues due to incorrect info being supplied by the O2 sensors etc.
OK, I appreciate the exhaust mod may change back pressure and presume it could have caused the plugs to have issues (which is what it feels like). I'll get it put back to standard and get the plugs changed and see what it's like.
The over-rev was done a year before I bought it through a Porsche main dealer. There was no mention of the over-rev at the time I wonder if it is normal for a dealer to offer a 2 year warranty on a car that they knew had been over revved?
Happy to hear thoughts on any of the above.
:thumb: