ISX15 CM2250 IMAP sensor erratic, intermittent or incorrect

[zyNoT]

It's strange, it randomly starts working even while driving.
It's extremely intermittent.


Also, possibly not related but the headlights wouldn't come on and displayed HDLP fault for a second and then they came on which was weird. Normally I'd say it's separate but they both went out, and we haven't had headlight problems in a long time because we changed both harnesses awhile back.

Starting to think this will be an electrical journey... ugh.