arren333

here are the codes that pulled up. P0251 Fuel Injection Pump Mechanical Failure Fuel Valve Feedback Circuit
P0252 Injection Pump Fuel Metering Control "A" Range/Performance
P1688 Internal Fuel Injection Pump Controller Failure
P1689 No Communication Between ECM & Injection Pump Module
P0253 Fuel Injection Pump Fuel Valve Open Circuit
P0230 Transfer pump circuit out of range
P0380 Intake Air Heater #1 Control circuit
P1693 Generic fault indicating a fault in the bus or PCM/ECM interface
if any one help thanks

BigIron70

Injection pump and transfer pump failure. May also have loose connections on intake air heater solenoid. All other codes related to injection pump failure along with transfer pump failure. Sorry

Junk Man

Good diagnostics here. http://form.mopar1973man.com/

Also download the FSM. 01 is available at pdftown

nickg

here is a link to Blue chips web site, he has the best diagnostic chart out there. your codes indicate a VP is required, and your lift pump is likely the reason for the VP failure

http://www.bluechipdiesel.com/vp44diagnostichelp.html