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Need Help Diagnosing Fuel Delivery Issue

huskerfan

New member
29
4
3
Location
Lincoln, NE
Good news is a buddy of mine said i can come pull the IP off the 6.2 engine sitting on his shop floor. Was hoping to snag a 6.5 IP off the internet since i had read those give you a little more power, correct?
 

huskerfan

New member
29
4
3
Location
Lincoln, NE
It might be too late. But, pull your pink wire when checking the lift pump flow with the fuel filter open.
Haven’t started pulling the IP yet - what would your solution help us narrow down? Isn’t the pink wire the cold start advance or something? I remember reading about it on another thread
 

Barrman

Well-known member
5,400
2,074
113
Location
Giddings, Texas
The fast idle and cold start advance both have a green wire connecting to them. The pink wire as pointed out above is what turns the fuel on or off.

My post in #24 is just following normal fuel filter bleeding procedures. If the engine is cranked with the pink wire connected and powered while the fuel supply to the injection pump is open. Air will get into the injection pump and you will be starting over again trying to get the IP full of fuel again to even diagnose your issues.
 
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