Glow plug light flashing and engine light come on simultaneously on 03 manual. Starts right up and runs well. Has code p0252 for injector pump rotor. If i clear tge code it will go away until next time i start it cold. Any ideas?
You are using a generic reader as I do not find P0252 at the Ross tech wiki. Some people think this:
P0252 Injection pump metering control "A" range performance, possible causes Cam/ Rotor /Injector I see this alot,the service manual talks about cylinder 3 with the needle lift sensor to be replaced, The root of the problem ,your cam is worn. You need to get that check out. Find someone with VCDS.
Assuming your 2003 is an ALH flashing glow plug is usually a brake light/switch issue.