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On the way home last night, my ("new" to me) 09 Cayenne (V6, 6 - spd manual) suddenly lost power. ~50K miles. The check engine light appeared. The code is P2293. Fuel pressure regulator. I've always done my own work on my Porsches, BMWs and others cars. I'm not able to find a manual for the 2009 or trouble shooting procedures, etc. The basics seem straight forward, check the fuel pressure, etc. However, the Cayenne is a new beast to me. I don't know were the test ports are located, steps for isolating pump from press reg value etc. I don't want to replace parts until I can isolate the problem. AlldataDIY.com claims to have a subscription based manual though I'm skeptical it will have the detail I need for troubleshooting and repair. As a point of ref I've had several 911s, 944s, 914s, BMWs and have maintained all myself for ~30 yrs. I'm not a neophyte when it come to working on P cars.

 

On first glance, I'm leaning towards a failing pressure regulator. The Cayenne will run fine for a few mins and then loose power. Power comes back for a few mins.... then looses power. I need to find the fuel pressure test ports. I'm assuming normal pressure should be between 75-90 psi?

 

However, I've not been able to find a source/manual for troubleshooting and basic repairs for my Cayenne. 

My questions: 

1) Has anyone encountered this code? What steps did you take to isolate and fix the problem?

2) Where can I get a legit repair manual without spending $$$?

 

Thanks in advance.

 

Rob

Edited by das86turbo

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P2293 Diagnosis information DME V6 DFI - Fuel high pressure

 

Possible fault causes
  - Pre-delivery quantity or pressure in fuel low pressure circuit too low
- Pressure relief valve in high pressure circuit faulty
- Fuel high pressure sensor faulty
- Quantity control valve faulty (in fuel high pressure pump)
- Fuel high pressure pump faulty
- High pressure injector(s) (fuel injector(s)) faulty

 

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On the way home last night, my ("new" to me) 09 Cayenne (V6, 6 - spd manual) suddenly lost power. ~50K miles. The check engine light appeared. The code is P2293. Fuel pressure regulator. I've always done my own work on my Porsches, BMWs and others cars. I'm not able to find a manual for the 2009 or trouble shooting procedures, etc. The basics seem straight forward, check the fuel pressure, etc. However, the Cayenne is a new beast to me. I don't know were the test ports are located, steps for isolating pump from press reg value etc. I don't want to replace parts until I can isolate the problem. AlldataDIY.com claims to have a subscription based manual though I'm skeptical it will have the detail I need for troubleshooting and repair. As a point of ref I've had several 911s, 944s, 914s, BMWs and have maintained all myself for ~30 yrs. I'm not a neophyte when it come to working on P cars.

 

On first glance, I'm leaning towards a failing pressure regulator. The Cayenne will run fine for a few mins and then loose power. Power comes back for a few mins.... then looses power. I need to find the fuel pressure test ports. I'm assuming normal pressure should be between 75-90 psi?

 

However, I've not been able to find a source/manual for troubleshooting and basic repairs for my Cayenne. 

My questions: 

1) Has anyone encountered this code? What steps did you take to isolate and fix the problem?

2) Where can I get a legit repair manual without spending $$$?

 

Thanks in advance.

 

Rob

 

There are no "legitimate repair manuals" for this vehicle, Porsche never produced them in print, but only in an electronic form which requires a PIWIS TSI subscription to view online.

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I’m having the same symptoms and error code, only when it’s above 105 deg F and the gas tank isn’t more than 3/4 full. I fill the tank and the problem goes away. WT?!

Any insight will help. This can’t only be happening to me.

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1 hour ago, Pxwguad said:

I own a 2010 Porsche Cayenne Base, w/3.6 V6, and the error code is P2293.

If you look two post up, Loren has already listed the probable faults.

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Thanks I saw that post, but my problem only shows up when the ambient temp is above 105 deg F. If the ambient temp is lower than that I get absolutely no issues.

i was just hoping that someone else had already had this problem and had found a solution.

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On ‎7‎/‎16‎/‎2019 at 4:07 PM, Pxwguad said:

Thanks I saw that post, but my problem only shows up when the ambient temp is above 105 deg F. If the ambient temp is lower than that I get absolutely no issues.

i was just hoping that someone else had already had this problem and had found a solution.

 

Pxwguad

had the exact same problem yesterday from Vegas to LA same error code

half a tank 105 degrees ran fine after temps below 100

have you found anything out?

no idea where to start

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P2293 Diagnosis information DME V6 DFI - Fuel high pressure

 

Possible fault causes
 - Pre-delivery quantity or pressure in fuel low pressure circuit too low
- Pressure relief valve in high pressure circuit faulty
- Fuel high pressure sensor faulty
- Quantity control valve faulty (in fuel high pressure pump)
- Fuel high pressure pump faulty
- High pressure injector(s) (fuel injector(s)) faulty

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Had the same error code while going over mountain passes in Colorado. Anytime car had less than 3/4 fuel and 5K ft above sea level, it had really poor acceleration and bogging down. Had to keep it full to go anywhere on CO mountains. 

 

Came back to east coast and even with less than 1/4 fuel no issue with accelerating around 400 ft above sea level. 

 

I plan on picking up harbor freight fuel pressure tester kit. What else should I get to help with troubleshooting and going thru the checklist posted above? Durametric

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11 minutes ago, Nurbek I said:

Had the same error code while going over mountain passes in Colorado. Anytime car had less than 3/4 fuel and 5K ft above sea level, it had really poor acceleration and bogging down. Had to keep it full to go anywhere on CO mountains. 

 

Came back to east coast and even with less than 1/4 fuel no issue with accelerating around 400 ft above sea level. 

 

I plan on picking up harbor freight fuel pressure tester kit. What else should I get to help with troubleshooting and going thru the checklist posted above? Durametric

 

Be careful with the Harbor Freight fuel pressure tester, it is NOT designed for the pressures your DFI runs at, which can be as high as 3,000 PSIG

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7 hours ago, JFP in PA said:

 

Be careful with the Harbor Freight fuel pressure tester, it is NOT designed for the pressures your DFI runs at, which can be as high as 3,000 PSIG

 

so which tool do you recommend then?

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We use a Joma high pressure test kit, all stainless and Kevlar that is capable of reading 2,000 bar.  Sells for about $750. 

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