jmlcolorado

I need some help guys! My 03 2500 is not liking the cold.
A few days ago my truck sat through -20f over night. The fuel in the air dog froze up. After much discussion on that issue, i got it running and happy.
Last night it sat through it again. It started great this morning and ran fine for half the day. I stopprd for lunch and shut the truck off. It sat for about 20 minutes in 7* weather.
NOW its got a check engine light and is acting STRANGE!
Very rough idle, lots of noise and almost dying. I figured it might be too cold again.
I got it to limp home and in the middle of driving (very slowly and with little throttle) It jerked, jumped then died.

In the middle of all this, sometimes with very light throttle applied, the engine screams up in rpm like i mashed the throttle.

Now that its home the idle is up and down constantly.

I cant figure this out. I have a blow dryer on the Air Dog and its warm to the touch so i know its not to cold now.
What gives?
I have video that ill post in a few once i fond my card.

On the ay home, it had almost no power though it was running smooth, then out of the blue, it jumped and stuttered then stalled. Once restarted, it seemed to have full power again and was smooth too.

My fuel pressure gauge stopped working some time ago and i never got around to fixing it so thats no help either

jmlcolorado

Fault Codes:

P0237 -Turbo/Super Charger Boost Sensor A Circuit Low
P0234 Turbocharger Over-boost Condition
P0236 Turbo/Super Charger Boost Sensor A Circuit Range/Performance
which i think its always had.....

P0192 Fuel Pressure Sensor Voltage Too Low
Which i think is new.

The number if times that last code is shown always changes depending on how the truck is running.
Sometimes only once, other times it'll flash it 3 seperate times.


I do know it has nothing to do with cold fuel cause i drained the water trap on the air dog and the fuel is actually warm to the touch.

jmlcolorado

Well, i unlugged my quad box since it was hooked into my rail pressure sensor. We'll see what that does i guess.
Truck seems to be running great now though the CEL is still on. Hopefully that will clear itself in a day or so of starting successfully.

Silverstreak

Sounds like the fuel is gelling. Get some additive (Diesel Power etc.) dump it in and drive around a bit.

jmlcolorado

Thats my problem in this thread:

https://www.dieseltruckresource.com/...m-t284733.html

If you read through that one, you'll see that i never once threw a code.
Yesterdays experiance has been fixed i think. I removed my quad box and the truck is running fine and the CEL is gone.

Though......im still working on the fuel gelling issue........

I dont get why everyone else with an airdog doesnt have this problem.