Vehicle extremely hard starting. ECM does not ground fuel pump relay with key on. Pressure starts to build as engine is turned over. What component tells ECM to ground relay to prime pump with key on? Does ECM have it's own logic to cycle relay/prime pump with...

FIX posted 3/9/2010

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle