help ground on harness rear intake manifold bolt?

[kevin phillips]

Anybody know what the ground is for on rear drivers intake manifold stud?I have one with some crazy starting issues at times and found the ground not connected and was wondering what issues could be caused by it.Is it a ficm ground?thanks guys i haven't been able to found any references to it in the shop manual.

[Keith Browning]

That is ground G110 and it is the fuel injector harness shield ground. The ground wire is loosely wrapped around the injector circuits and is also in contact with that foil tape that the harness is wrapped in. The shielding is to reduce or eliminate RF interference which can create stray voltage.

[kevin phillips]

thanks keith i reattached it,still screwing up setting cmp codes think i'm gonna yank it and see how much rust is there where the sensor mounts.

[Aaron]

Might need a harness, check the harness between the takeout near the fuel filters and the cam sensor, they chafe up against the fuel lines and shit, I've seen that a lot. Same with the front intake bolt on that side, they crush the harness there quite frequently, also.