September 17, 2019, 10:18:49 AM

Author Topic: PCM Help  (Read 565 times)

Offline Stankywankykime

PCM Help
« on: March 25, 2019, 08:32:29 PM »
I have a serv num 12576106 pcm that has blue/green connectors. The pcm is tuned and will work with a drive by cable. The engine is a 2005 L33 5.3 Aluminum block with an Ls1 intake and injectors. I want to use a blue/red standalone harness, and i know i will have to repin the pcm to make it work, but how do i go about doing this? Any help would be incredibly useful. Posted this in an ls forum with no reply, figured Id try here. Going in a 1988 Mazda Rx7!

Offline Exidous

Re: PCM Help
« Reply #1 on: March 26, 2019, 11:33:52 AM »
Grab the pin out diagram for each ECU. Make the standalone harness match the physical pins of the blue/green ECU. You need to be wary of the DBW ECUs. Many will not have the driver for the IAC meaning they are not physically capable of running the Idle Air Control valve of a DBC setup.
94 BB SBE LS1 Full Mamo top, MS3ProU with TC, RONIN 8.8 and another custom dual 2.5" stainless exhaust. Too loud, need bigger muffler....

Offline Poconojoe

Re: PCM Help
« Reply #2 on: June 10, 2019, 12:10:17 PM »
If you're still having issues let me know.
There is very little you need to change in the harness but there is much more that needs to be changed in the tune

Offline Cavaliercrazy

Re: PCM Help
« Reply #3 on: June 27, 2019, 12:15:29 PM »
http://lt1swap.com/

hey has a guide for all the pin out conversions