2007 Cayman S - *feels* down on power
Discussion
So - my 2007 Cayman S (25k miles, 18 months of Porsche Warranty remaining) has, in the last few drives, felt - to me, subjectively - slightly down on power.
Most noticeable in the lower rev ranges. It's revving quickly and smoothly enough, but (to my "backside dyno") seems to be a little breathless lower down. Most noticeable on familiar 2nd gear bends where I have previously required to be a little careful (in the wet) now being able to be exited in a more ham-fisted / lead-footed manner with nary a wiggle.
I wondered if it was some duff fuel (tank was nearly empty first time I noticed), but a refuel with fresh Tesco 99 feels just the same.
Car is booked into the OPC next Tuesday, and Im not unduly worried (given the warranty). More concerning is the fact that it feels different to me - but may be difficult to pinpoint why. The car is using very little oil over the 3.5k miles I've put on it, and otherwise runs like a dream.
A service technician will be taking the car out (with me) on Tues. Any advice on things I should be asking them to check (or chacking that they have checked) ?
Cheers...
Most noticeable in the lower rev ranges. It's revving quickly and smoothly enough, but (to my "backside dyno") seems to be a little breathless lower down. Most noticeable on familiar 2nd gear bends where I have previously required to be a little careful (in the wet) now being able to be exited in a more ham-fisted / lead-footed manner with nary a wiggle.
I wondered if it was some duff fuel (tank was nearly empty first time I noticed), but a refuel with fresh Tesco 99 feels just the same.
Car is booked into the OPC next Tuesday, and Im not unduly worried (given the warranty). More concerning is the fact that it feels different to me - but may be difficult to pinpoint why. The car is using very little oil over the 3.5k miles I've put on it, and otherwise runs like a dream.
A service technician will be taking the car out (with me) on Tues. Any advice on things I should be asking them to check (or chacking that they have checked) ?
Cheers...
Trev450 said:
If it is a bad batch of fuel and the ecu has detected it and knocked the timing back, it will take at least another tank full of 'good' fuel for it to reset.
Interesting.I had a good run through to the west at the weekend, to get some high(ish) speed running in, and it felt pretty much the same. However - predictably - when I was taking it into the OPC to be checked this morning it felt pretty perky again. Cue a kinda embarrassing test drive by one of their Techs.
They checked it over and could find nothing, bar a splitting coffin arm bush that they are doing nder warranty.
Happy enough if it has 'cured itself' - so long as it doesn't reoccur...
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