[MineralF30]

My car died on me for the second time in two weeks due to loss of fuel pressure in the tank. The first time it happened my gauge was reading a little under half tank, about 140 miles left. I had a drivetrain malf. pop up on the dash and the car died on me, and I opened the tank up and it was bone dry inside.

I filled it up with a gallon of gas and drove to the station and filled the tank all the way up but it stopped at 9 gallons..

Does anyone have any advise cause I don't know what's going on with this?

[MineralF30]

Bump. Recently dropped my gas tank and replaced it with a different one and also swapped out buckets to replace the fuel regulator and it still didn't work.

Any advice??

[ronanz]

Have you verified fuse (#165?) is still good?

.

[MineralF30]

Originally Posted by ronanz

Have you verified fuse (#165?) is still good?

.

What fuse is that? Fuel pump?

[ronanz]

Originally Posted by MineralF30

What fuse is that? Fuel pump?

Possibly, yes....not 100% certain as LPFP does not have its own icon. Just a logical guess as it's always been under the fuel icon with higher amperage...but, I'd certainly start there..

.

[MineralF30]

Originally Posted by ronanz

Possibly, yes....not 100% certain as LPFP does not have its own icon. Just a logical guess as it's always been under the fuel icon with higher amperage...but, I'd certainly start there..

.

I just checked it along with all of the other fuses that go with the fuel icon and they all checked out good, except for fuse #150. I don't have a fuse there but that could be a normal thing for N55's.

[zole2112]

I was getting some really weird shit going on with my fuel tank level when my HPFP failed, I didn't think it was related though. I got the following codes:
193208 (multiple times) tank level, plausibility: deviation between consumption and level change
11A002 (2 times) Fuel Pressure below target
1193001 (11 times) fuel level sensor, left, signal:short circuit to positive
110001 cylinder injection shutdown: too low pressure in the high pressure system

When I pulled the LPFP the tank was so full it overflowed, I never had that happen before and I've pulled my LPFP at least 6 times before. Not sure if it's in any way at all. I checked my fuse and it was good. In the end I changed my HPFP due to the various issues and finally the 110001 code pointing to the HPFP. I also changed my level float/sensor on my LPFP but I don't know if that had any effect or not. I haven't had any related codes since.
The only fuel level issue I have is that when the low level light comes on the miles remaining will drop a lot faster than seems realistic.

[MineralF30]

Originally Posted by zole2112

I was getting some really weird shit going on with my fuel tank level when my HPFP failed, I didn't think it was related though. I got the following codes:
193208 (multiple times) tank level, plausibility: deviation between consumption and level change
11A002 (2 times) Fuel Pressure below target
1193001 (11 times) fuel level sensor, left, signal:short circuit to positive
110001 cylinder injection shutdown: too low pressure in the high pressure system

When I pulled the LPFP the tank was so full it overflowed, I never had that happen before and I've pulled my LPFP at least 6 times before. Not sure if it's in any way at all. I checked my fuse and it was good. In the end I changed my HPFP due to the various issues and finally the 110001 code pointing to the HPFP. I also changed my level float/sensor on my LPFP but I don't know if that had any effect or not. I haven't had any related codes since.

I've gotten hpfp codes also for the pressure being too low but I always figured it was due to the low pressure side. I do have port injection too so maybe since that is spraying a lot it is sorta masking the signs of the hpfp dying.

That might be what I'll have to change next. That along with the fuel lines going from the hpfp to tank are the only things I haven't changed yet.

[zole2112]

Originally Posted by MineralF30

I've gotten hpfp codes also for the pressure being too low but I always figured it was due to the low pressure side. I do have port injection too so maybe since that is spraying a lot it is sorta masking the signs of the hpfp dying.

That might be what I'll have to change next. That along with the fuel lines going from the hpfp to tank are the only things I haven't changed yet.

Yeah, during this process it first died going about 25 mph in town. I then first changed my Stage 2 LPFP and put my stock LPFP back in and it actually ran fine for about 12 hours so I thought that was it. Then it died again on the highway with the code 110001 cylinder injection shutdown: too low pressure in the high pressure system, then I figured it must be the HPFP, which it was.

[MineralF30]

Originally Posted by zole2112

Yeah, during this process it died going about 25 mph in town. I then first changed my Stage 2 LPFP and put my stock LPFP back in and it actually ran fine for about 12 hours so I thought that was it. Then it died again on the highway with the code 110001 cylinder injection shutdown: too low pressure in the high pressure system, then I figured it must be the HPFP, which it was.

Interesting, I'll have to look back at my code history but I'm sure I've gotten that code before.

I'll update the thread in the next day or two after I change it and see what it does.

[zole2112]

Originally Posted by MineralF30

Interesting, I'll have to look back at my code history but I'm sure I've gotten that code before.

I'll update the thread in the next day or two after I change it and see what it does.

Sounds good! Good luck!!

[MineralF30]

Originally Posted by zole2112

Sounds good! Good luck!!

Update: I changed the HPFP but it didn't fix the issue, it still died when the tank got past half. However, now i keep getting active O2 sensor codes so I'm going to replace those along with the LPFP with a Walbro 525 and see if that does anything...

[Munchi435i]

Originally Posted by MineralF30

Update: I changed the HPFP but it didn't fix the issue, it still died when the tank got past half. However, now i keep getting active O2 sensor codes so I'm going to replace those along with the LPFP with a Walbro 525 and see if that does anything...

I'd say to replace the O2 sensor first before upgrading the lpfp

[MineralF30]

Originally Posted by Munchi435i

I'd say to replace the O2 sensor first before upgrading the lpfp

That's the plan, I have to wait for it to ship though so I won't have it for about a week.

The main problem is that my fuel isn't transferring from the left side of my tank so that's why I'm trying the lpfp first. I don't think it'll fix it but it's worth a shot.

[MineralF30]

Problem is fixed! Installed a new lpfp and that solved the problem

[Ajax915]

What were the fault codes?

Originally Posted by MineralF30

Problem is fixed! Installed a new lpfp and that solved the problem