12.7 questions

It takes very little time to pull the valve cover. That should of been one of the first things you did.

 

Key on and hold override/ chk button, count flashes. Red - active. Yellow - stored ( old codes)

 

My Truck was running when injector( s) went bad. I could see exhaust manifold was soaked with fuel around # 5. I guessed it was the bad one. Second time fuel was squirting out of selinoid on # 1, very obvious with valve cover off. I’ve never had an injector harness problem. Just straightened everything up and put new zip ties on. I would imagine a test light would show power to selinoids. Either constant or as a signal while cranking. I don’t know proper procedure. Like I said, not very good with electrical. But I’m sure there are specs on proper ohms and resistance, or whatever. If your good with a volt meter. I’m not. Must have a broken wire or bad pin connection somewhere. If I had to, I’d guess there’s no power to the injector harness at all. If it were only 1 bad wire, it would still run on 5. I wouldn’t be surprised if it would run on less, even 2. But I honestly have no idea. Just my thoughts.

 

Tripsheetcentral.com

 

Schematics @ powerlinecomponents.com

 

Did the truck just quit on you? Did you do anything to the truck other than change out the fuel pump?