1slow01Z71

iTrader: (36)

Not into a GMT900 which is the subject of this thread

Niff is doing the best job of documenting this swap for sure, after he gets it figured out Im sure this swap will become much more common. Good job niff and stick with it youll get it figured out.

iamkeniff

iTrader: (16)

its no biggie...changed it.

iamkeniff

iTrader: (16)

well, i pm'ed MNC5 which hasnt been on in almost a month so maybe he'll log on soon. im just trying to figure out what i could have done/didnt do that would make my truck throw the
p0700 code then not even let my truck crank/idle/rev up.
i double checked the TCM harness, and it is plugged in right, the TCM ign/12v fuses have power and the PCM reads when i pull them. the PCM reads when i unplug the TB/MAF to try and get it to idle down on its own. just a few things ive tried with no luck. it does the same thing as if the fuel is shut off to it, yet i repinned the new harness JUST like my stock harness and the FP primes like its suppose to with no problems. im just trying to figure this out before i have Truckshop come look at my truck

GMCtrk

iTrader: (27)

Sounds like it's in the tune for sure.

iamkeniff

iTrader: (16)

well we didnt "rewrite" the tune, the TCM just popped up after he rescanned my truck. we changed shift points/shift times/a few other things involving the converter, nothing else was touched. maybe its just something simple that im over looking, we'll see asap
ah well the driveshaft is pimp as hell! also the bolt in yoke got machined down today at my old job, gotta love having a cool ex-boss that loves custom work

Rhino79

iTrader: (7)

Did you write your vin into the tcm? It may just be a mismatch between tcm and ecm.

iamkeniff

iTrader: (16)

i think so. im not 100% sure. im no tuner, i can do the mechanical side of things but all those charts and crap i get nervous

iamkeniff

iTrader: (16)

exact text from Truckshop: "never saw a spot to insert the vin# into the tcm. i made the changes and flashed it. i didnt do a write entire though, just a write calibration"

GMCtrk

iTrader: (27)

might be best just to do an entire reflash of the operating system.

iamkeniff

iTrader: (16)

thats what he just texted me, just rewrite the entire system, plus change that Air/Flow on the idle since i dont have a retarded stall anymore if that rewrite fixes it, imma burn the tires off