Fuel Pump, Car Stalls at Idle
Hoping someone can help me out with my issue. The car ran great when I picked it up apart from a fairly heavy fuel smell coming from the engine bay (could not see any obvious leaks anywhere). Before bringing it into a shop I decided to replace the FPR, EGR gasket, and Injectors in that order (one at a time). The car ran fine after replacing the first two, but after replacing the injectors the car would stall after turning it on and letting it reach idle (it has no problems starting). I also noticed that the injector for cylinder 6 looked like it was flooding from the bottom of the injector, (where the injector meets the head). I replaced that injector but it would still flood once the car got to idle after startup. Also the fuel smell was still present. Out of options I towed the car to AAA to see if they could resolve the both the fuel smell and the stalling at idle issue. After a couple of days it looks like they found the source of the fuel smell, it was the fuel line running from the FPR that had a leak. They ended up replacing both the fuel line and the intake manifold gasket. However the stalling issue still persists. They then told me it was most likely either a bad fuel filter or fuel pump. I thought this was strange as the car ran fine before I started fiddling with the injectors, however as the car still could not run I told them to proceed with the fuel filter and fuel pump replacement. After trying 4 different fuel pumps, they called back to tell me that the VX needs 48-55 fuel pressure and that non of the 4 fuel pump they tried could produce anything above a 40 PSI. So they told me that the reason the car is starting but stalling is that its not getting enough fuel pressure.
Sorry for the long explanation but I tried to be as thorough as I could without writing a book haha. If any of the members here could lead me in the right direction it would be greatly appreciated because I am out of ideas, as AAA told me that they can't continue working on the car until I bring them a fuel pump that pushes out at 48-55 PSI. What fuel pumps have you guys used that gave you a good pressure reading.
Thanks
OEM Fuel pump for sale NEW
If you are looking for an OEM new pump, I am selling one.
I'm Anita, one of the long----------time owners who purchased their VX new back in 2000. I started picking up parts and pieces thinking about the day Isuzu parts would become scarce. I had a long love relationship with my truck and when my mechanic moved out of state I decided to sell the VX. Last year I passed it on to someone else. Now, I finally started selling all the surplus I have collected through the years.
I am selling a new, never been used, still sealed in its plastic Isuzu fuel pump $150
aprotich@glendale.edu
626 233-6076 [text]
anita
Thanks[/QUOTE]
What was the final solution to this? Did putting back the old injectors solve it?
Quote:
Originally Posted by
Vehi MK 11
I have heard about bad EGR/lines causing these issues. It'll definitely be one of the first things I try.
Here are the CEL codes that I got:
P0137: Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
P0157: Oxygen Sensor Circuit Low Voltage Bank 2 Sensor 2
P0171: Bank 1 System Too Lean
P1171: Fuel System Lean During Acceleration
P0174: Bank 2 System Too Lean
Honestly, before I try anything I'm going to go ahead and reinstall my old injectors to see if maybe the new injectors are the problem. The car only started acting this way after I swapped out the injectors so maybe that will fix the issue. Hopefully will have an update by Saturday night.
I'm getting the 3 codes below on my '01 Foxfire. (90,454 miles)
P0137: 02 Sensor Circuit Low voltage Bank 1 Sensor 2
P0157: 02 Sensor Circuit Low voltage Bank 2 Sensor 2
P1171: Primary Fuel Pump Insufficient/No Fuel Flow
I've replaced both aft 02 sensors and cleared codes, only to have all 3 return. Don't want to rush replacing the cats just yet but the deadline for emissions testing is coming up and I'm wondering if a lean condition (P1171) can CAUSE the downstream sensor codes? (seems unlikely that both would go bad at the same time.)
She starts, runs and accelerates fine. Visited a local muffler shop this morning and explained the scenario. The owner adamantly stated aftermarket 02 sensors are garbage, and that they must be OEM for this vehicle. (but I got the exact same codes as the original after the swapping them out.) I suspect there are different codes for NO communication with the computer vs. reporting LOW voltage, but I'm no expert. I'm going to change the fuel filter first and clear codes again to see if there's any change. If not, checking fuel pressure will be next. TIA for any other advice or suggestions.