PCM Question - BMW/LS1

Reply Subscribe

Thread Tools

Search this Thread

Apr 7, 2010 | 10:47 AM

FreedS4

Thread Starter

Staging Lane

Joined: Feb 2010

Posts: 57

Likes: 0

From: Corpus Christi, TX

PCM Question - BMW/LS1

I'm working on putting the pieces together for my 89 325/98 LS1 swap. I've got the 98 harness, but don't have a PCM. What are my options? I've found the 98 PCMs to be a lot pricier than the 99+ PCMs. Could I run a 99+ PCM with my 98 harness? Thanks in advance.

Apr 7, 2010 | 10:53 AM

poconojoe

Banned

iTrader: (43)

Joined: Aug 2008

Posts: 1,066

Likes: 3

From: Northeast PA

You can repin the connectors for the PCM to use the 99-2002, since you're not going to be using the fuel gauge from the F-body, you will not even have to do the segment swap on the OS

Apr 7, 2010 | 12:53 PM

FreedS4

Thread Starter

Staging Lane

Joined: Feb 2010

Posts: 57

Likes: 0

From: Corpus Christi, TX

Quote:

Originally Posted by poconojoe

You can repin the connectors for the PCM to use the 99-2002, since you're not going to be using the fuel gauge from the F-body, you will not even have to do the segment swap on the OS

So a 99-02 PCM will work, good. What do you mean by re-pin? Thanks for your help.

Chris

Apr 7, 2010 | 01:47 PM

rao

TECH Resident

iTrader: (18)

Joined: Dec 2005

Posts: 980

Likes: 1

From: Naperville, IL

He means moving some of the pins around.

Apr 7, 2010 | 01:50 PM

FreedS4

Thread Starter

Staging Lane

Joined: Feb 2010

Posts: 57

Likes: 0

From: Corpus Christi, TX

Quote:

Originally Posted by rao

He means moving some of the pins around.

Cool, which I'll be doing to make it work in the e30 anyway. The harness connector is the same regardless of the year of PCM though, correct? Thanks again for the help.

Chris

Apr 7, 2010 | 06:55 PM

poconojoe

Banned

iTrader: (43)

Joined: Aug 2008

Posts: 1,066

Likes: 3

From: Northeast PA

Quote:

Originally Posted by FreedS4

Cool, which I'll be doing to make it work in the e30 anyway. The harness connector is the same regardless of the year of PCM though, correct? Thanks again for the help.

Chris

No the harness connectors are wired differant in 98, that's why you need to repin them

Apr 7, 2010 | 10:41 PM

FreedS4

Thread Starter

Staging Lane

Joined: Feb 2010

Posts: 57

Likes: 0

From: Corpus Christi, TX

Quote:

Originally Posted by poconojoe

No the harness connectors are wired differant in 98, that's why you need to repin them

Ok, but regardless, my 98 harness will work (once re-pinned) on a 99-02 PCM. Any PCM from those model years (i.e. Camaro, Trans Am, Corvette?). Thanks for helping the noob.

Chris

Last edited by FreedS4; Apr 8, 2010 at 09:25 AM.