cutting in and out

[hauling8]

Guys, my truck is cutting in and out and sometimes cutting off while driving or at idle. I just replaced the pmd, new miser injectors,new gm8 turbo, vacuum pump, wastegate solenoid, and new pmd harness. Please HELP

[95suburb]

my truck had a similar issue, a new fuel filter, lift pump and ops switch did the trick.

[Stumped]

Were you having trouble before the addition of all the new parts?(I know you had turbo problems) You might make sure the firewall plug for the main harness is clean and tight...and double check all of the grounding points.I havent started working on that Burb I picked up this winter(doing same things) has the sandwhich style battery cables on the positive side of the battery.I believe one goes directly to the starter,the other feeds the dash and electrical sys for the body.I would make sure those 2 cables are clean with no corrosion between the two(they stack on top of each other on the pos post of batt)

[Sasquatch]

Are you getting any codes? Sounds a little like the optic sensor.

[hauling8]

No code. So i have a back up pmd and when i hooked it up it still did the same thing, so i thought what are the chances that i have 2 less than a year old pmds that are bad so a friend of mine is the parts manager at a chevy dealer and he let me borrow a new pmd and i have driven it for 342 miles and it never missed a beat, think i found the problem?

[Stumped]

Is the GM pmd different?

[saddletramp]

Check my recent posts, 'back in love' and 'say it aint so..."
Good luck.