vetteguy112233

Ok I see where people are recommending to use the 12200411 PCM's and mention that other PCM's may work the same.

I purchased another PCM today for $25, it is a 12576106, this PCM is suppose to be able to run a cable throttle body as well as my 4l80e and my tuner can hopefully tune it for my 5.7. I purchased the $25 PCM because it was cheap and recommended from here: http://lt1swap.com/cable_conversion.htm

What would be the advantages of buying a 12200411 and using it instead of my 12576106?

This is all to get a 1998 LS1 to work with my 1999 4l80e and make it a cable throttle body. My tuner uses HP Tuners.

LSX Power Tuning

iTrader: (4)

A 411 or 896 pcm would work for what your wanting to do BUT the pcm you bought should work depending on your harness and o2 sensors. I always just a 411 or 896 then I know I want have any problems with the harness or O2's.

vetteguy112233

I forgot to mention that my harness is also from the 98 camaro that the engine came from.

gagliano7

You will have to do a search but I think you will have to do some rewiring with the switch.

vetteguy112233

I guess it no longer matters, I found 2, 411 computers locally today for a deal I couldn't pass up.

fordkilla2000

How do you tell which pm you have? Just from the serial numbers on pcm? Which the best for a 2000 z28 ls1

codyvette

iTrader: (24)

The stock computer in a 2000 Z28 is the best. If you want the tables from a 2001/2002 just write the entire O.S. to the 2000 PCM .....poof done.

vetteguy112233

On the front of the pcm there is a white sticker, with a hardware and service number, your service number should be 12200411 and as mentioned by codyvette, you already have the one you want/need.

Ozz1967

iTrader: (1)

Slightly older thread but the main difference is 512kb vs 1mb memory. Otherwise the newer 12576106 should work just fine. Just program out whatever you don't use from it.

ScottyBG

As gagliano7 stated, your '98 wiring harness wont plug into a 411 ECU as is. You will need to change the connectors and repin it. The pin locations on the '98 ECU that goes with your '98 harness is totally different, hardly any on the wires go to the same pin locations. I'm not sure what you are using for a fuel tank, and sender, but the segments for that are different from '98 and the other years. I've seen a document on MRK's website which has a list of the pin changes required.

travisn

You don't need to change connectors, just move pins around...