Error Code U0109 Communication lost with fuel pump

[Ta2dResqr]

LTFT? STFT? FRP Desired?

 

[Stringcheese]

All the pids look ok. Check for a vacuum leak.

Will do. I hate vacuum leaks.

 

[Stringcheese]

LTFT? STFT? FRP Desired?

I do not know those acronyms sir. Please break them down for me.

 

[Stringcheese]

All the pids look ok. Check for a vacuum leak.

No apparent vacuum issues. I checked from top of engine with engine cover off. Followed every vacuum line I could find. They all look great. Car only has 38,000miles on her.

 

[kryptto]

No apparent vacuum issues. I checked from top of engine with engine cover off. Followed every vacuum line I could find. They all look great. Car only has 38,000miles on her.

check the plastic charge pipes as well for cracks.

 

[Texas Marauder]

I do not know those acronyms sir. Please break them down for me.

Long Term Fuel Trim, Short Term Fuel Trim, Fuel Rail Pressure Desired, which is OK per your picture.

Disconnect the battery, wait 30 minutes or so, start the engine with all accessories turned off, do not press the gas pedal and see if the idle will relearn.

 

[Ta2dResqr]

I do not know those acronyms sir. Please break them down for me.

STFT = Short Term Fuel Trim, will show if it is immediately rich or lean.
LTFT = Long Term Fuel Trim, will show if it is a constant issue or more intermittent.
FRP Desired = Fuel Rail Pressure Desired, your picture shows rail pressure but what is the computer commanding. This will show leaking injectors, weak pump, etc.

 

[Texas Marauder]

STFT = Short Term Fuel Trim, will show if it is immediately rich or lean.
LTFT = Long Term Fuel Trim, will show if it is a constant issue or more intermittent.
FRP Desired = Fuel Rail Pressure Desired, your picture shows rail pressure but what is the computer commanding. This will show leaking injectors, weak pump, etc.

 

[Stringcheese]

So I had a failure. The hose that attaches on the bottom of the top plate had come loose because I must have missed the clip on the ***.

The car puked out about a gallon of fuel that I saw. I imagine that balances the saddle tanks and I had an overflow? No matter.

I did reset the car's PCM completely like a ********.

She's running much better now with a slight noise from the new fuel pump and an occasional stutter on let off at mild throttle. I hope she's just relearning!

I would like to thank you all kindly for all of your help! I would've been stuck without you! Forums like this are about the only good thing with the internet.

THANKS!

Sent from my SM-S908U using Tapatalk

 

[kryptto]

So I had a failure. The hose that attaches on the bottom of the top plate had come loose because I must have missed the clip on the ***.

The car puked out about a gallon of fuel that I saw. I imagine that balances the saddle tanks and I had an overflow? No matter.

I did reset the car's PCM completely like a ********.

She's running much better now with a slight noise from the new fuel pump and an occasional stutter on let off at mild throttle. I hope she's just relearning!

I would like to thank you all kindly for all of your help! I would've been stuck without you! Forums like this are about the only good thing with the internet.

THANKS!

Sent from my SM-S908U using Tapatalk

Sometimes going back and looking what we thought we fixed is the least but unfortunate suspect. Sorry to hear about the problem but glad it's hopefully in the rear window now.