93 to 94-95 PCM and Harness??
#1
93 to 94-95 PCM and Harness??
Okay, When I got the car on the dyno I found out that I am having computer problems. I was told to check my harness for breaks or shorts. Well, after further inspecting my harness it is spliced in way more than originally thought. I knew the oil sensor was spliced and the coolant sensor but,OMG every fuel injector harness is but connected together. After all the work I've done to the car I never noticed this. I've also had the CPU replaced once before. I'm having Quad Drive failures. My question is. What do I need to switch to a 94-95 PCM.
Parts I know I need:
94-95 PCM
Engine Wiring Harness
IAC
Do I need anything else?? I figured if I have to change a CPU and a harness, I should go to a more common and easier to tune setup. I need to get this resolved fast!!!
-Thanks, Justin
Parts I know I need:
94-95 PCM
Engine Wiring Harness
IAC
Do I need anything else?? I figured if I have to change a CPU and a harness, I should go to a more common and easier to tune setup. I need to get this resolved fast!!!
-Thanks, Justin
#4
You will need a MAF. Not sure if you need different o2 sensors as well.
There is a slight difference that I am not sure if it needs to be addressed:
http://shbox.com/1/harness_connector_faces.htm
Also you will have to tune out all of the transmission related codes.
There is a slight difference that I am not sure if it needs to be addressed:
http://shbox.com/1/harness_connector_faces.htm
Also you will have to tune out all of the transmission related codes.
#6
You will need a MAF. Not sure if you need different o2 sensors as well.
There is a slight difference that I am not sure if it needs to be addressed:
http://shbox.com/1/harness_connector_faces.htm
Also you will have to tune out all of the transmission related codes.
There is a slight difference that I am not sure if it needs to be addressed:
http://shbox.com/1/harness_connector_faces.htm
Also you will have to tune out all of the transmission related codes.
PM Sent!!
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#8
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From: Decatur, TN (N-W of Athens)
You'll need an engine harness and PCM. 99.5% sure that's it. 93 won't plug into a 94 PCM, so you require the harness. I'm assume you're going to get it tuned, so you won't need a MAF since they can just set you up for SD. Since you have to do the harness anyways, and will be changing computers to boot, did you think about doing the LS PCM swap?
#9
The ICM is also different. As far as wiring goes, the pins on the connectors by the passenger side kick panel are in a different order. The connectors are C210, C220 and C230. Use shoebox's schematics for the pinouts and compare them. Here is a link http://shbox.com/1/harness_connector_faces.htm
#10
You'll need an engine harness and PCM. 99.5% sure that's it. 93 won't plug into a 94 PCM, so you require the harness. I'm assume you're going to get it tuned, so you won't need a MAF since they can just set you up for SD. Since you have to do the harness anyways, and will be changing computers to boot, did you think about doing the LS PCM swap?
The ICM is also different. As far as wiring goes, the pins on the connectors by the passenger side kick panel are in a different order. The connectors are C210, C220 and C230. Use shoebox's schematics for the pinouts and compare them. Here is a link http://shbox.com/1/harness_connector_faces.htm
I appreciate all the help guys. Has ayone actually ever done a conversion?? I don't want to do the LS1 PCM because of the cam and crank sensors.
#12
I've done this, but it was a 99-02 harness in a 98 LS1 TA. Different wiring harness, but I had to do the same thing plus some compared to what you need to do. It's not bad, as long as you have pinouts for the 93 connectors and the 94 connectors it will be easy.
#16
#18
#19
Obviously it would be easier for you to use a M6 harness, but you can use an auto harness if you don't mind the extra work of removing the unused auto wires and adding in the needed M6 wires and pigtails. Any of the 6 speed swap write-ups out there would explain that part of the deal for ya.
Last edited by fergymoto; 04-23-2009 at 03:51 PM.