DrX

iTrader: (7)

No .....

2005 Silverado

iTrader: (19)

I had the same 1518 code...mine was a broke ground on the passenger rear block. Funny thing is i pulled on that wire first a week ago

EVILGMC

iTrader: (47)

I relocated that ground to the firewall lug.

CalEditor@PCMCalibrators

iTrader: (4)

I have something for you to try

EVILGMC

iTrader: (47)

Have not had time to work on it this week. Doing work on the house and waiting on some parts from the truck.

1SlowHoe

iTrader: (28)

I'm not sure if it would help you at all but my 2300 came with a 3 bolt TB adapter plate kit. I was having TB issues like you were with my LS2 90mm TB and harness, so I bolted my OEM 3 bolt TB (2002 Tahoe, maybe 78mm?) on the 2300 and it worked.

The LS2 TB with adapter wiring haness would open 100% when the key went on (engine off) stay open for 10 seconds or so and then shut. I could then hit the gas pedal and it responded perfectly. As soon as I started the engine, the TB would not respond and it would set codes. I gave up.

EVILGMC

iTrader: (47)

I GIVE UP

lady3bglover

iTrader: (3)

Ok.. I've read a few pages of this thread and I was wondering if the two sensors that are on the driver side of the TB have been checked?

If I'm wrong, sorry I mentioned it.

Lisa

chpspecial

iTrader: (1)

Have you tried a new PCM, but instead of flashing it with HPT, try EFILive... or at least a different running version of HPT. I know a while back that HPT had some issues with burning up TAC modules, and what not in a beta release.

DrX

iTrader: (7)

The sensors are built into the throttle body on the drive by wire TBs. He has tried several different throttle bodies and several X-Links.

Problems with the wiring, OS or PCM are possibilities.