ecm differences

[MadMaxRacing]

Is there any differences between an 02 and 03 ecm.I swapped an 03 for an02 then the truck would not start .whats the problem???

 

[S Phinney]

Yes,there are differences with the overall setup. There is more to it than just the ecm. Other components of the computer network would require some flashing by a tech2 as well as the ecm to work properly

 

[Kat]

Did you do the emergency relearn?

 

[JoshH]

VIN mismatch would be my guess.

 

[ripmf666]

VIN mismatch would be my guess.

As Josh said vin not matching the bcm. Do the relearn turn the key to the run not start for 11 mins turn key off and right back on for 11 mins after that off and on again for the last 11 mins then turn off then start the truck.

 

[JoshH]

You can also reprogram it with EFILive. You don't even have to burn a license to do it.

 

[ripmf666]

You can also reprogram it with EFILive. You don't even have to burn a license to do it.

Josh how do you do this if you dont mind sharing :hug:

 

[Kat]

Josh how do you do this if you dont mind sharing :hug:

http://www.duramaxdiesels.com/forum/showthread.php?t=2035

Look at the first part I quote from Cougar in the above thread

 

[ripmf666]

http://www.duramaxdiesels.com/forum/showthread.php?t=2035

Look at the first part I quote from Cougar in the above thread

Kat that was the one I called and told you about lol.I want to know how to do it the way Josh is talking about with efi live.:hug:edit next time read the quote lol sorry lol

 

[JoshH]

I've never done it with the scan tool. I've only used the tune tool to program a VIN. I always thought it required a license until I was on EFI's website today and read something that said it doesn't. To program a VIN, open the tune tool, click on "Flash", from that menu click on "PCM Security", when the window pops up, click on "VIN/BCC", enter your VIN in the new VIN spot, and click "Update VIN" on the left side of the window. It's been a while since I've programmed a VIN, so I could be off a little on the steps, but that should be pretty close.

Here's what I read. Hopefully I didn't misunderstand what they were saying.

FlashScan can be used to reprogram the VIN in the engine and/or transmission controllers if desired. Reprogramming the VIN in a controller does not require a license.

 

[ripmf666]

Hmm have to try it if I ever get another ecm or tcm