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Reduced Engine Power

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pboldmonts

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The above warning light came on last Sunday. Managed to get back home with what seemed to be an electrical type fault, miss-fire when demanding more power. Thought at the time it felt like a coil pack. Popped it into Porsche Solihull this morning. Turns out not to be so simple. Diagnostic shows a fault has been present for some time even though I and the "system" had not noticed. It was reset in the hope it would clear but as they reversed it off the ramp it came up on the display again. They want the car back but seem to think it's the high pressure fuel pump. Not a cheap part and not quick to fit either. Part is about £450 so glad I'm still in second year of warranty.

Guy in service said has only experienced two other instances, both on Cayman's. Mine is a C2S Cabrio. Anyone else come across this fault? Any other thoughts. Apparently they can't just order the part and fir it as, if they do and it turns out to not be the problem then Porsche will not pay for the part, the dealer will have to.

Just what you need with the weather we are having, not!!!
 
My OPC has changed 6 pump units within the last few months, the only common thead being all owners had regularly refuelled on supermarket forecourts. [:(] There are many posters here that avoid these outlets like the plaque. A lot of enthusiasts favour Shell V Power as fuel of choice and will go out of their way to get it. Personally, I've found BP Ultimate and the Texaco version also acceptable and without problems. Fuel quality has maximum importance in high performance motorcars. Hope this helps. Regards, Clive
 
Totally agree, Clive - wouldn't touch Supermarket petrol, especially after the last fiasco that they flatly denied was their fault.
 
Thanks for the thoughts. That is not true for my car though. I have never used supermarket fuel in my Porsche. Invariably I use Shell V Power and I'm sure I've only ever used BP Ultimate as an alternative. Will let you know the outcome of the investigation
 
It maybe some duff stuff you've picked up on the continent then - since the fault has been present for some time. [8|] What it says on the pump label can differ from what's actually put into the storage tank. [:mad:] Regards, Clive
 
Wouldn't be the first time the high pressure fuel pump has played up............ http://www.porscheclubgbforum.com/tm.asp?m=524316&mpage=1&key=&#524316
 
Car went in to OPC Solihull this week. It was the High Pressure Fuel Pump and all is now well. There has been an added bonus and I feel like I have a new car. I have posted before my concern about the PDK on my car. I have always felt there is a hesitation when pulling away - momentary but noticeable all the same. The car went back to Porsche in the early days of ownership, the software was updated but it was still there. I had not experienced this in the cars I drove at SIlverstone but there seemed nothing was amiss according to Porsche. I had a Cayman 2.9 with PDK for 3 days this week whilst mine was being attended to. No surprise when I drove it that it pulled away very smoothly etc. Imagine my delight then when I drove away from the OPC to find that mine no longer had the hesitation problem!!! I'm sure the "technical experts" amongst you will put me right but I think the hesitation problem was related to the fuel pump. The OPC advised that the fault had been present for a long time. Could it be that the valve on the pump had been faulty from manufacture and allowed the pressure to drop too low on idle and for it to pick up again when power was demanded but there was a momentary lapse for the pressure to reach the right level and hence the hesitation when pulling away? Whatever, I feel like I have just been given a new car! It now lives up to my original expectations - and some.
 
Peter, really pleased you have a positive outcome and have the car that lives up to expectations!. Certainly if the pump was playing up it sounds like that will affect the pick up of the engine from idle. No hesitation on the turbo, I might add!![;)]
 
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