ecm intermitantly not turning on lift pump
#1
ecm intermitantly not turning on lift pump
have 01 dodge 2500 cummins.. fass 150 gph lift pump. pump wont turn on wen key cranked.. normaly runs when engine is running but itermitantly shuts off so i checked all conections etc they are all good, relay is good. im thinking ecm has internal issue. is it ok to run the fas with just ignition power instead of with ecm.. i know ecm runs it at a lower duty cycle just for cranking for some reason... just wondering if anyone has done this or ran into this, cheers
#2
#5
Thread
Thread Starter
Forum
Replies
Last Post
Renteria1217
24 Valve 2nd Gen Dodge Cummins 98.5-02
4
04-16-2015 11:38 PM
klein444
Chevy/GMC 6.2L and 6.5L
2
02-21-2015 10:33 AM