woodlandfarms
Junior Member
Hey all So I have a 1999 2500 diesel. 24 valve, VP44. The other day the engine just died. Thought it was me, restarted immediately and off I went. Yesterday it decided to do it again on the freeway. Now a bit of panic, but it instantly restarts with the key, no engine codes, no nothing. I arrive at my meeting, turn around and head back and it dies again, this time it won't start, just cranks I wait a few minutes, it starts again, I limp it into a parking lot and call AAA. So now it is home, I pull out my antique OBD2 scanner and it comes up with basically nothing. Now, it is an old code reader. I start the truck, it runs fine, run the code again and it pops up a P0523 code. High oil pressure. My gauges differ but I am not going to argue. To add to all of this, more information. The truck has 140K miles on it. In 2021, at 30K miles I had the fuel pump replaced, as well as the VP44 it took out, and replaced the computer, and replaced the crank position sensor and MAS sensor. Oh, I do have an aftermarket fuel pressure guage. When the engine is running it holds around 15PSI. When the key goes on, it bumps to 5PSI and then back to zero, but as soon as the engine catches it is up to 15...
So with this, lots of questions
Would I be better off spending a few hundred on a new code reader that seems to really handle modern cars well (the $500 version).
Would a high pressure signal from the oil cause the engine to immediately shut down. Seems like a stretch given the age of the vehicle but....
Anything you would suggest looking at. As there are no codes, I got nothing to really go on, maybe the fuel pump is failing (it is aftermarket, an Airdog 100). Maybe it is crapping out and stopping fuel from making it to the VP44. Or maybe it is the 44, not sure how well built these are (was it a rebuild, dunno).
Thanks everyone in advance.
So with this, lots of questions
Would I be better off spending a few hundred on a new code reader that seems to really handle modern cars well (the $500 version).
Would a high pressure signal from the oil cause the engine to immediately shut down. Seems like a stretch given the age of the vehicle but....
Anything you would suggest looking at. As there are no codes, I got nothing to really go on, maybe the fuel pump is failing (it is aftermarket, an Airdog 100). Maybe it is crapping out and stopping fuel from making it to the VP44. Or maybe it is the 44, not sure how well built these are (was it a rebuild, dunno).
Thanks everyone in advance.
