Hi everyone,

I have a 2011 Porsche 911 Turbo with 88k miles and PDK. Just wondering if anyone else in the 997.2 turbo (possibly also 991 turbo also?) have to replace their high pressure fuel pump?

I was having typical symptoms such as taking prolonged time to start car when it finally caused low fuel pressure and car running in safe mode. I got error codes P1023. I had noticed before this there was some oil leaking out of the HPFP region of the car but didn’t know the cause prior to the development of symptoms. I would see yellow oily drops on the floor in garage below the HPFP as well. On visual inspection there is oil appearing to come out of part of a silver diaphragm or valve looking device. See photos. Anyone know if it’s possible to repair these as the dealership wants more than $3k for a new one? I am currently repairing mine and using a gently used one as replacement. I have some photos to better show what I’ve talking about. Any advice or experience appreciated! Is it a good idea to also replace the fuel rail pressure sensor also?

 

I'm having the same problem.

How your story ended?
Did you manage to rebuild the pump somewhere?

 

Hi, yes I repaired it using a used high pressure fuel pump from a newer 991.1 turbo (2015) that had about 12k miles on it. It still cost me $1500 for the part but that was better than $2500 they sell them for new online. There is a good DIY article from the 997.2 non-turbo forum that describes how to do it yourself. How many miles on your 997.2 turbo? Do you have a chip tune? (Possibly chip tune wear out the pumps?). I still have the old pump laying around and would like to know if someone does repair these. Let us all know how your situation gets fixed!

 

Yes. My 2010 Turbo had the HPFP replaced under warranty in 2013 (there was a recall I think) by prior owner and then again in 2019. I paid for the 2019 about $5K to the stealership for parts and labor. Like you said, the pump alone was like $3K and they had to special order it form Germany. They also charged like 8-10hrs of labor! I would have tackled it myself, but I was a bit fearful of blowing up/burning my car by not doing something correctly. good luck

 

wow, yeah that sure is expensive. How many miles would the pump last? Do you have a computer tune? What’s your plan for this next fix?

 

It has around 45 000km (~28 000 mls).
No tune, just the exhaust.

I was hoping that it can be rebuild like the turbocharger or something. Looks like exchange is the only option

 

I need to go look at the service receipts to see how long the 2013 pump lasted before it failed in 2019. My car just turned past 70k mi, I bought it with about 64k mi. For the 2019 failure, I had the stealer fix it. My car is stock with no tune. Just a sharkwerks X pipe that went on after fixing the pump.

 

My 2011 TTS Cab needed the HPFP during reconditioning at the dealership I bought if from in November. If I recall, their internal billing put the cost at around $6k. Car was just under 44,000 miles at the time.

 

I have this issue too on 2011 turbo at 80k. Havent had any noticeable symptoms yet other than slight oil leak. I had posted about the turbo issue on the non-turbo thread. Non-turbo hpfp = $1000 not so much for us.

I bought two o-rings (gaskets) to repair the pump, but like others a little nervous on how to depressurize the system. If anyone has done it, could you list the steps to fuel depressurization? The guy on the nonturbo thread already had a depressurized system from what i remember.

Also it was suggested to change the water pump/thermostat at the same time with the hpfp out.

 

The pump is driven by camshaft, so with the engine off there is not that much pressure in the fuel system. You can safely unscrew the hard lines. Have something in your hand to cover and clean slight fuel spillage.

You won't fix the pump with the orings... the damage is somewhere inside the pump.

 

I was going to say great news about the pressure and now I have another project to do, until I read your last line.

I have no adverse symptoms other than slight oil leak. What else could fail internally?

 

Did you check the errors with some code scanner? What did you get?

I have found no information about any pump repair or rebuild. I have no idea what fails and how it can be repaired...
The pump itself looks like a sealed unit - I see no easy way to open it. The only thing you can remove is the solenoid but I doubt this is the problem.

I bought a new pump. Porsche have change the part number (ends with 73) and I hope the new one is better.

 

No related codes at all, no delayed start, no idle issues... just a simple leak I found last Summer around the hpfp housing. The leak didn't even hit the floor, although I think sitting in winter may have accumulated on the ground (outdoors so hard to tell with all the snow in PA). This is why I thought simple gaskets as a fix. I believe there are two gaskets 1) hpfp to camshaft 2) some inner gasket.

I thought I read someone's hypothesis that the inner gasket fails leaking oil internally mixing with fuel and eventually leads to pump failure.

Where did you source the pump? I've only seen $2K+, most are $2.5K.

Wet pump

 

The small oring is just a seal between the camshaft and the pump rotor. The big one is a seal between the valve cover and the pump body. In my opinion they have nothing to do with the pump and its internals at all.
In your case looks like the big oring is leaking and you have some engine oil mist on the pump and area around. In my case there were also some oxidation between the valve cover and pump body which may also lead to some leak if the pump wouldn't fail first

My suggestion is to clean the pump and leave it as it is.

Although I'm from the other side of the globe the cheapest place to buy the pump was here Shop OEM Porsche Parts Online | Delaware Porsche Parts