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I have a 1998, ROW C2. Over the past two weeks I have noticed that the fuel gauge is not reading correctly. The gauge will read high (3/4) but as I drive, the gauge will slowly drop to the correct reading over about 15 minutes. As the car sits, either at work for the day or in the garage overnight, when I go to start the car, the gauge will read over 1/4 tank higher than when I shut it off. Then, as I drive, it will drop to where I think it should be (or remember where it should be). I plan to pull the sender this weekend and check the connections, but I don't think it is the float as why would it rise while the car is turned off? Is it possible to troubleshoot the cluster gauge? I have a Durametric so I will attempt the fuel level calibration when I have pumped down the tank. Or am I just fooling myself and the gauge is bad?
I’m having a weird ‘fuel thing’ with my 2001 Porsche 911… So, I’ve been thinking it gets terrible gas mileage, compared to my 986 Boxster. I expected slightly less, but, it seems pretty bad. Now, I can’t help but wonder if there’s actually something amiss about it.
When I fill the tank completely—and I mean ‘topping it off’ to get every last drop in, my fuel gauge usually looks like this (see the first picture, 01).
That picture was taken immediately after starting the car after filling up the tank (I was still at the pump). There have been occasions where the needle has gone all the way to just slightly past the 4/4 mark (just like the Boxster always does), but it usually lands below as seen in the photo.
However, today I was down to the warning light coming on telling me I’m low on gas. I stopped to fill it up and it only took about $30 worth. That’s odd, with gas prices here and filling up an almost empty tank, that should have been between $44 and $48 (that's what the Boxster runs). I tried to top it off but it wouldn’t take any more, as if the tank was full.
So, I got in the car and started it, and (just like before) this picture was taken immediately after starting the car after filling up the tank (I was still at the pump) - (see the second picture, 02).
Just barely over half a thank.
Any idea what could be going on with this?
I have a 2009 997.2 PDK Carrera 2 and am getting a loss of power and this error code:
2510: Fuel high-pressure control - adaptation. Value below lower limit value
I believe this means my HPFP is dead and am looking for the workshop procedure for replacing the high pressure fuel pump HPFP. I have looked far and wide for a DIY tutorial on this, but found nothing. My local stealership will do the work for $900 labor plus parts. I have sourced the pump for $850 and want to do the work myself. The pump looks readily accessible at the back right end of the engine, facing the rear bumper.
I am happy to write this up as a DIY with pics if someone can forward me the workshop manual pages or procedure?
I was driving a new to me 04 S in the mountains of Tennessee last weekend. With about a 1/4 tank (maybe a little less but the warning had not come on) going up or down a hill (I can't remember) on the interstate, the engine sputtered and quit as if running out of gas. No check engine light. Pulled to the side, waited. It started. Went 10 miles, same thing. Got to an exit. Got gas. No more problems.
Other facts. I recently installed two new fuel pumps. Also, I cannot fill the tank at a gas station at the normal rate without the pump quitting -- as it there is a vent that won't let air be displaced.
Any ideas? Thanks in advance.