DFI engine issues
#91
Nordschleife Master
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Having problems with my Cayman S now..I suspect its the high pressure fuel pump
It takes a few cranks to start the engine now..And when driving down to the garage to get it checked, it was offbeat for a while..The car started to jerk and there was no power! Fuel starvation maybe?? But the fuel level is 3/4 though..When finally reached my local garage, the PIWIS tester showed 3 faults on the DME.
1.)P0441 - Tank Vent System
2.)P1024 - Fuel High Pressure Too High After Engine Off
3.)P1023 - Fuel Pressure / Fuel Volume Too Low At Start
The technicians are currently checking on it, and will inform me once they are done with their diagnosis.
Got a really bad feeling its the HPFP though..![crying](https://rennlist.com/forums/graemlins/bigcry.gif)
![ooops](https://rennlist.com/forums/graemlins/icon501.gif)
1.)P0441 - Tank Vent System
2.)P1024 - Fuel High Pressure Too High After Engine Off
3.)P1023 - Fuel Pressure / Fuel Volume Too Low At Start
The technicians are currently checking on it, and will inform me once they are done with their diagnosis.
Got a really bad feeling its the HPFP though..
![crying](https://rennlist.com/forums/graemlins/bigcry.gif)
#92
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Nope the workshop hasn't contacted me yet..Its not at a Porsche Dealer btw..Bought my car as a grey import so no warranty offered by Porsche Malaysia
#93
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HPFPs are the future but today, they are not ready for prime time.
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Goldenappple (04-26-2022)
#95
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The new pumps may not solve the problem. BMW continues to hae problems. mT HPFP on my 535 was rplaced as part of their campaign at 5O K miles and the new one now take longer to start and makes fluxuating noises at idle.
HPFPs are the future but today, they are not ready for prime time.
HPFPs are the future but today, they are not ready for prime time.
Trade up to a dot two. You won't regret it.
Gary
#96
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Your's is simply one car. Many folks continue to have problems with HPFPs.
#97
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I have had no FP issues before or after I replaced it.
#98
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Goldenappple (04-26-2022)
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Gary
#100
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I had my HPFP replaced once on my car and have not had any further issues with my car since. In fact, I really dont see many issues with the 997.2's as I think I did with the 997.1's. Most people that had the HPFP replaced have not had any further issues with it. You cant compare apples ( Porsches) to oranges (BMW's) and expect the same result. It was my understanding that Porsche had the HPFP issues sorted out long ago ater they had the pump modified to correct the issue.
Either way I have enjoyed the 997.2 as much as the 997.1 and will likely move into the 991 at some point.
Either way I have enjoyed the 997.2 as much as the 997.1 and will likely move into the 991 at some point.
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Goldenappple (04-26-2022)
#102
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Had my HPFP replaced under the campaign, too. Had about 10k miles at the time of replacement. Previous HPFP gave me no problems. Engine would start within 1 second of cranking. Now, with the new HPFP, about 5% of all my starts, it would take about 2-3 seconds of cranking before the engine would start. Keeping an eye on the issue, but so far so good.
#103
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I thought I would post this here since this is the DFI engine issues thread:
Yesterday I was going to brunch and I had a check engine light come on. I was driving about 60 MPH and had not exceeded that speed. I pulled over immediately and stopped. I noticed some smoke at the back of the car and killed the engine as I didn't want to do further damage. I got out and looked in the engine bay and could smell a lot of fuel but none was leaking on the ground. It also smelled quite loud inside the cabin for a while. The car was running rougher than normal but not ragged. I had it flatbedded to the dealer and then went over to the dealer today. They initially thought it was the HPFP but they were running diagnostics and the tech was out to lunch so I waited on a callback.
I was told the issue is a bad fuel injector but I didnt have time to discuss in detail of what or why this may have occurred. I also would like the codes to see what the result is.
Is this something others are experiencing with fuel injector as I didnt see much on the site specifically pointing to only a fuel injector?
It seems odd that I would have a faulty injector but could be possible.
Yesterday I was going to brunch and I had a check engine light come on. I was driving about 60 MPH and had not exceeded that speed. I pulled over immediately and stopped. I noticed some smoke at the back of the car and killed the engine as I didn't want to do further damage. I got out and looked in the engine bay and could smell a lot of fuel but none was leaking on the ground. It also smelled quite loud inside the cabin for a while. The car was running rougher than normal but not ragged. I had it flatbedded to the dealer and then went over to the dealer today. They initially thought it was the HPFP but they were running diagnostics and the tech was out to lunch so I waited on a callback.
I was told the issue is a bad fuel injector but I didnt have time to discuss in detail of what or why this may have occurred. I also would like the codes to see what the result is.
Is this something others are experiencing with fuel injector as I didnt see much on the site specifically pointing to only a fuel injector?
It seems odd that I would have a faulty injector but could be possible.
#104
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I thought I would post this here since this is the DFI engine issues thread:
Yesterday I was going to brunch and I had a check engine light come on. I was driving about 60 MPH and had not exceeded that speed. I pulled over immediately and stopped. I noticed some smoke at the back of the car and killed the engine as I didn't want to do further damage. I got out and looked in the engine bay and could smell a lot of fuel but none was leaking on the ground. It also smelled quite loud inside the cabin for a while. The car was running rougher than normal but not ragged. I had it flatbedded to the dealer and then went over to the dealer today. They initially thought it was the HPFP but they were running diagnostics and the tech was out to lunch so I waited on a callback.
I was told the issue is a bad fuel injector but I didnt have time to discuss in detail of what or why this may have occurred. I also would like the codes to see what the result is.
Is this something others are experiencing with fuel injector as I didnt see much on the site specifically pointing to only a fuel injector?
It seems odd that I would have a faulty injector but could be possible.
Yesterday I was going to brunch and I had a check engine light come on. I was driving about 60 MPH and had not exceeded that speed. I pulled over immediately and stopped. I noticed some smoke at the back of the car and killed the engine as I didn't want to do further damage. I got out and looked in the engine bay and could smell a lot of fuel but none was leaking on the ground. It also smelled quite loud inside the cabin for a while. The car was running rougher than normal but not ragged. I had it flatbedded to the dealer and then went over to the dealer today. They initially thought it was the HPFP but they were running diagnostics and the tech was out to lunch so I waited on a callback.
I was told the issue is a bad fuel injector but I didnt have time to discuss in detail of what or why this may have occurred. I also would like the codes to see what the result is.
Is this something others are experiencing with fuel injector as I didnt see much on the site specifically pointing to only a fuel injector?
It seems odd that I would have a faulty injector but could be possible.
Gary
#105
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11,400 miles on the car. HPFP replaced under applicable "campaign". No problems with the old pump or the new one. Thought the car was using oil but finally got a good benchmark. At the rate I'm going it looks like about a quart per 2,500 miles. That's better than my -06 C4S which was pretty steady at 2,000 miles per quart over almost 45,000 miles.