Long time lurker and I have solved many problems thanks to the help from the experts on here. Now I am at a point where I need a little advice.
Early 03, deleted, arp studs, fire ring gaskets, etc, etc.
I was getting a hard start when cold and hot. My hpop
numbers were bouncing and my ipr
max'd out at 85%. I had a P2291 code. Pulled parts, got back to the icp
sensor. It was coated in oil, so I replaced it and the pigtail. Started up fine, drove around the block, no issues.
valve was replaced about 3 years ago. Rebuilt FICM
about 2 years ago.
Day after I replaced the sensor, I am sometimes getting a hard start and occasional no start when the truck is hot.
When cold I have the following before cranking:
After cranking, I get the following:
When it is hot and I get a hard/no start issue, the HPOP
will be around mid 300s, IPR
max's out at 85%. Sometimes it will eventually build pressure and crank. Every now and then it won't.
Errors I pulled are
I have had a weak glow plug in one cylinder for a while. So I am aware of that.
I know I probably need to check for leaks, but getting back to the icp
sensor just isn't fun to me.
sensor and/or the low voltage on the FICM
cause it to not be able to build pressure? I just wanted to look at some obvious options before I tore into it again.