Wiring the ALDL up with an LT1
#1
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Location: Hinton, Alberta. Canada
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Car: 1985 Camaro Z28
Engine: Caprice LT1
Transmission: 4L60E
Axle/Gears: 3.23
Wiring the ALDL up with an LT1
I am wondering if you guys who have swapped in an LT1 have your ALDL terminal working. Looking at the wiring diagrams I assume that I could just connect the brown wire coming from the firewall connection to my data link line of my LT1 harness, is this right?
Or can I simply splice the data link line coming from the LT1 harness directly into the "B" connector on the ALDL terminal?
I mainly want to get the connection up so that I can reprogram my PCM with the cable and program that I have.
Judging by my repair manual for the LT1 it looks like the only two important wires on the ALDL seem to be the "A" connection which is a ground and the "B" wire.
Thank you for your help.
Or can I simply splice the data link line coming from the LT1 harness directly into the "B" connector on the ALDL terminal?
I mainly want to get the connection up so that I can reprogram my PCM with the cable and program that I have.
Judging by my repair manual for the LT1 it looks like the only two important wires on the ALDL seem to be the "A" connection which is a ground and the "B" wire.
Thank you for your help.
#2
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Hey just checking to see if you had any luck on the ALDL. I'm getting close to that point also and would like to know too. Any info would be a great help.
Thanks
Thanks
#3
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Car: 1985 Camaro Z28
Engine: Caprice LT1
Transmission: 4L60E
Axle/Gears: 3.23
Yea, I got the issues sorted out and reprogrammed my computer using the PCMforless package if you want to use your own cable.
I used my ALDL from my Camaro and you only need 2 wires to reprogram. A ground and the serial data from the PCM.
F E D C B A is your ALDL
G H J K L M
A=ground
B=Mode Select (you don't need, it is for diagnostics)
M=Serial Data
I grouned mine to Blue 1 at the PCM, and the serial data is Blue 30 (D 30) or Blue 29 in my case.
You can find more detailed info at
www.akmcables.com
I used my ALDL from my Camaro and you only need 2 wires to reprogram. A ground and the serial data from the PCM.
F E D C B A is your ALDL
G H J K L M
A=ground
B=Mode Select (you don't need, it is for diagnostics)
M=Serial Data
I grouned mine to Blue 1 at the PCM, and the serial data is Blue 30 (D 30) or Blue 29 in my case.
You can find more detailed info at
www.akmcables.com
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Car: 1985 Camaro Z28
Engine: Caprice LT1
Transmission: 4L60E
Axle/Gears: 3.23
That diagnostic wire is only for certain diagnostic tools.
You can run some diagnostics off of the serial data line.
http://www.andywhittaker.com/ecu/download.htm
This guy andy whittaker has a really neat diagnostic program for free.
I haven't tried it yet but will after I buy a cheap laptop, which could be a while.
You can run some diagnostics off of the serial data line.
http://www.andywhittaker.com/ecu/download.htm
This guy andy whittaker has a really neat diagnostic program for free.
I haven't tried it yet but will after I buy a cheap laptop, which could be a while.
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