P0191

drservo · Oct 6, 2015

Fuel Rail Circuit range/performance Anyone had this code? It popped up about a week after I unplugged the three plugs for the EGR because of low power/Low power. P0191 came on yesterday and showed reduced power on the screen.

drservo · Oct 9, 2015

Has no one had this code?

CoreyMS · Oct 9, 2015

Stock truck? If not what tuner? How long you used it? Is it up to date?

Could be the frp sensor, but from what I've seen thats usually p0193 I think.

Any other codes?

Captaincworley · Oct 9, 2015

From his Sig I'd say it's an SCT with I********* tunes!
Only code I've ever gotten was at the track and it was a Low Fuel Rail pressure code.

Charles

jwanck11 · Oct 9, 2015

no, I haven't had it. Can you post what tune you are running?

drservo · Oct 10, 2015

Running Inno's highest tune, only had the P0191 once cleared it and hasn't came back. Only other code I have is P00BC mass airflow that's stays on all the time but I'm running No limits 5" intake.

Captaincworley · Oct 11, 2015

drservo said:
Running Inno's highest tune, only had the P0191 once cleared it and hasn't came back. Only other code I have is P00BC mass airflow that's stays on all the time but I'm running No limits 5" intake.

I've got the Nolimit S2 intake and luckily I haven't gotten any codes from it.
I guess now that I said so, I'll end up getting it lol!

Charles

Captaincworley · Oct 11, 2015

I don't even know why I had to open my freaking mouth in the above post. I've been tuned with I********* tunes for the past few months and haven't gotten any codes other than the Fuel rail pressure and then 5hrs after I opened my mouth about not getting any codes with the intake, My wife calls me and says my check engine light just came on in my truck.
I called her back on FaceTime so I could walk her through how to check it and here is what I got:

F502B049-E83F-40FF-8962-25DDFD6B3187.png.jpg

Tsktsktsk. So I wonder what the actual fix is for these stupid mass air codes with the big intakes!!

Charles

drservo · Oct 12, 2015

You've got my luck! Hopefully S*****N will be the fix, they say theirs will run with Nolimit without the codes.

Swsignal5 · Oct 12, 2015

drservo said:
Fuel Rail Circuit range/performance Anyone had this code? It popped up about a week after I unplugged the three plugs for the EGR because of low power/Low power. P0191 came on yesterday and showed reduced power on the screen.

Did the truck react any different. Loss of power or cut out? Could be a fuse loose in the jb. I've chased so many issues with my truck. Lol. If it still having g issues let me know. I can help u out.

drservo · Oct 13, 2015

Came back again yesterday and yes it goes into low power mode

Swsignal5 · Oct 13, 2015

drservo said:
Came back again yesterday and yes it goes into low power mode

If you pm me your vin I'll look it up through the FTR and IDS. there's some fusses to check. I had that same issue on my f450

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