need help
#1
need help
i have a 1999 dodge 3500 diesel with 5 speed tranny 144000 miles im lost to what could be wrong with my truck its been very hard to start it takes about 10 to 20 seconds then fires off check engine light came on and got 4 codes i know what the codes are po122,po237,po336,p1689 i have allready looked the codes up it dosent sound right that 3 sensors and the injection pump comm. to ecm i dont think all the sensors would go out at the same time im starting to think my pcm is going
#2
#3
i have a fuel pressure gage when the truck is running at idel its at 21psi and i know about the ecm comm. problem can meen the pump is going bad but i dont think that the map,crank,throttle sensor would go bad at the same time and the funny thing is after i deleted the codes the truck fires on the second crank now
#4
#5