Hi, there diesel crew
My 2nd gen 4x4 manual trans truck started giving me trouble yesterday.
(Runs rough and seems as if the VP44 is giving up, Or an injector is failing ) is a go no go feeling when at WOT
• I have installed (4 months ago) a new VP44 and Raptor 100 and had no issues until yesterday.
• I’ve also installed the Edge 3 months ago and ran without any issues.
• The Fuel sensor is installed right at the VP44 input banjo, and has always giving me 15 psi, (even though lately PSI dropped to 13 psi at idle and sometimes to 8psi at WOT)
• I installed a fuel filter the other day and started with no issues.
• The APPS sensor is new and provides good voltage
• It has 100hp new injectors for the last 4 months with no issues,

One thing I noticed is that when I change the filter and purged the lines I didn’t hear any sound from the Raptor when I open the switch or crank the starter only, but my question is would the fuel PSI be at 13 even if the fuel pump is not working?

My worst fear is that the raptor failed and with my Edge at level 4; I was pushing the vp44 to the point of failure, (Tonight I’ll run the codes and post them here)

Thanks for the help! I know I tend to write a lot.

 

Ok so here are the codes:

P0216 Fuel Injection pump Timing Malfunciton [new injector pump time] (new code)
P0320 no crank reference signal at pcm?? (new code)
P0522 Engine Oil Pressure Sensor/Switch Circuit Low Input (had this code for like a month didn’t get to fix it)
P1693 Generic fault indicating a fault in the bus or PCM/ECM interface (new code)

Just started the truck and the edge showed no readings on the fuel PSI (again I have this pluged at the inline banjo on the VP44)…

How screwed AM i?

Also the voltage on the batteries reads 11 to 13 and panel lights dim when i acelerate, just new things that ive noticed...

 

Do you have a fuel overflow valve? Possibly going bad causing the bad fuel pressure. Definitely a fuel issue.