12200411 PCM swap for 1996 to 2000 GMT400 trucks

[BOTTLEDZ28]

Really? your spreadsheet has them listed as ADD WIRE. Maybe I misunderstood the directions. Are they only needed IF I want to tune myself?

 

[Lextech]

It depends on how the tune is set up. I happen to know yours is set up not to need it.

Jeff

 

[BOTTLEDZ28]

It depends on how the tune is set up. I happen to know yours is set up not to need it.

Jeff

Outstanding. Thanks for the heads up. I was prepared to do those wires this weekend!!!!! Now, it will just be a simple swap of wires and Im good to go.

Do you reccommend that I get a dyno tune on the truck or should your tune be sufficient for my mods? CAI, Magnafow high flow Ypipe, Gibson cat back exhaust.

 

[Lextech]

A dyno tune will beat a mail order tune any day.

Jeff

 

[BOTTLEDZ28]

I'll have to hook up with Mike then since he's familiar with all this and somewhat local to me.

 

[BOTTLEDZ28]

ECM is in. Truck fired right up on the first crank.
I am getting a P0405 EGR position sensor circuit low voltage code. What is causing this? EGR is still installed and plugged in. 98 model year.

I'm pretty sure I did not have it tuned out since it was discussed earlier that it wasn't worth it so I left it alone.

 

[zizak145]

who can i send my 5.3 harness and pcm to have it made to a plug and play, i want to remove the black pcm from my 1998 z71 and just run everything off the 411..

 

[slowslowcamaro]

With a 411 swap in a 96 with a 4l60e. Can I run any year transmission after the swap

 

[Steve A]

Not without some computer tune changing I think, even with that you couldn't use a 4L60E newer than 2004 or 5 because of internals IIRC.

 

[AK49BWL]

ECM is in. Truck fired right up on the first crank.
I am getting a P0405 EGR position sensor circuit low voltage code. What is causing this? EGR is still installed and plugged in. 98 model year.

I'm pretty sure I did not have it tuned out since it was discussed earlier that it wasn't worth it so I left it alone.

Did you run the extra wire off the EGR's Pink wire to C2 Pin 7?