Porsche 991 Turbo S P1060 Fuel pressure implausible

[veej777]

Hi, despite being a Porsche owner and member for 25 years, this is my first post. I was hoping someone can give me their view on the current situation I am in with my Porsch 991 Turbo S…. Earlier this month my engine management light came on and the car reverted to limp mode(warning stated it was ok to drive on) but I didn’t want to take any chances so immediately parked the car. I have OPC warranty so contacted Porsche assist who diagnosed that there was a high/low fuel pressure problem. The Porsche dealer initially stated they suspected the high fuel pressure pump needed replacing but said that they needed to inspect the fuel before they could proceed to conduct the work under warranty. They said they extracted some fuel and found it was contaminated. They are claiming the fuel dispensed from the Costco fuel station could have been contaminated. I have used the same fuel station for the past 3 years to fill up each week and have receipts to prove the correct fuel(premium unleaded) was used. I have raised this situation with Costco who provided substantial evidence to prove the fuel was not contaminated at the time of refuelling. I am aware there is a low pressure fuel pump that resides in the fuel tank. Is it possible that an oil leak the LPFP could have contaminated the fuel in the tank? I feel Porsche are trying to avoid replacing the HPFP under warranty. They have already charged me over £1000 just to get the fuel sent to a lab.

These are the current symptoms:-
1) The car idles rough
2) Car takes longer to start
3) The car stalls
4) Loss of power
5) Occasionally misfire

The car has been with Porsche West London for almost one month and I have lost total confidence on the technicians ability to competently diagnose and resolve this issue.

 

[veej777]

Sorry. Error code is P1026

 

[Smurf991ts]

Speak to customer service at Porsche GB and make a complaint. If the fuel really is contaminated all they have to do is drain all the fuel and put some Shell 99 in. Going forward use Esso 99, Tesco 99 or Shell V Power 99. Porsche turbo needs the best fuel. Personally I'd not let Porsche West London anywhere near my 911. By far one of the worst service depts in UK. Full of temp staff who are clueless. How hard is it to drain the fuel and put new fuel in?

 

[LucyO]

Sounds awful. Since they have rejected your warranty claim you may now be best off finding an Independent Garage to do the work and transporting the car there yourself. (I suggest you get Porsche to confirm their rejection in an email and explain you will make repairs yourself at approved garage). You will probably save a lot of money. Check the garage is able to provide an Engineers Report in case its obviously a component failure unrelated to fuelling. In which case you claim all your costs back.
PS Costco 97RON E5 shouldn’t destroy your Engine, but avoid E10. The more premium Brands will have better detergents. Any fuel station can cock up and contaminate their stock.

 

[veej777]

Thank you both for your advice and suggestions. I sent a complaint relating to the length of time(4 weeks) they had taken to get results of a fuel contamination test despite providing substantial evidence from the fuel outlet that the fuel was not contaminated over the last 5 occasions I had refuelled. I had all the receipts. The fuel test result was clear and they finally agreed to replace the HPFP under the warranty which resolved the issue. This is what I had pointed out in the fist place and despite my counter argument they decided to go ahead with the fuel contamination test regardless at my expense. The 5 week delay to repair my car was avoidable and there was nothing to warrant a fuel contamination test. I also obtained advice from an independent Porsche specialist to confirm the issue was not caused by fuel contamination but they decided to ignore this advice. It was very poor judgment by Porsche west London and I am going to avoid using them in future.