need help wiring my ALDL - LT1
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Car: 1984 Z28 T-TOP
Engine: 355 Lt1 w/Hotcam
Transmission: TH700R4
Axle/Gears: 3.73 4th gen limited slip
need help wiring my ALDL - LT1
Can't pull codes.
I have found my b and m port wires for the ALDL, but what wires from the LT1 harness go to them?
I also noticed that my ALDL port only had pins on the top row.
Am I missing anything else?
94 LT1 into an 84 camaro swap.
I have found my b and m port wires for the ALDL, but what wires from the LT1 harness go to them?
I also noticed that my ALDL port only had pins on the top row.
Am I missing anything else?
94 LT1 into an 84 camaro swap.
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Car: 82 Z28
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Car: 1984 Z28 T-TOP
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Re: need help wiring my ALDL
I have a 12 pin ALDL connector. the SHBOX diagram is for a 16 pin.
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Car: 1984 Z28 T-TOP
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Re: need help wiring my ALDL
I'm just about positive that's incorrect. 94 LT1's still had an OBD1 12 pin connector. The switch to OBDII was in 95. Secondly, Considering the ALDL is origional from an 84, the OBDII wouldn't even fit.
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Re: need help wiring my ALDL
http://shbox.com/1/1995_pcm1.jpg
On the "D" connector ( blue )
On the "D" connector ( blue )
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Re: need help wiring my ALDL
#9
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Car: 1984 Z28 T-TOP
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Re: need help wiring my ALDL
Lets get back on track. What wire does the LT1 harness splice into so I can read the codes from my OBD1 ALDL in my 84 camaro. I think it is the diagnotsic enable wire from the C230 does it splice to terminal B in the origional port?
Last edited by pimpimusmaximus; 04-16-2013 at 03:20 PM.
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Car: 1984 Z28 T-TOP
Engine: 355 Lt1 w/Hotcam
Transmission: TH700R4
Axle/Gears: 3.73 4th gen limited slip
Re: need help wiring my ALDL
Ok, I'll answer it myself.
http://www.camaroz28.com/forums/3rd-...ite-up-474185/
white/black from c230 connector to port b on ALDL black/white wire
tan from C220 pin F to port m tan ALDL wire
http://www.camaroz28.com/forums/3rd-...ite-up-474185/
white/black from c230 connector to port b on ALDL black/white wire
tan from C220 pin F to port m tan ALDL wire
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: need help wiring my ALDL
94 and 95 used the same identical PCM , only the ALDL layout changed
You are wrong
Is very well documented that 95 had a OBDII 16 pin ALDL plug but was still OBDI
The switch to OBDII was in 96 ( only 96/97 LT1's have the crank angle sensor used with OBDII )
Last edited by vetteoz; 04-16-2013 at 06:15 PM.
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Re: need help wiring my ALDL
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Car: 97 SLP SS, 91 RS, 91 GTA, 92 JY FF
Engine: LT1, VRE 383 LT1, L98, LB9
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Re: need help wiring my ALDL
Im using this and some of shoebox's stuff to wire mine. I have the same issue as you. Make sure that you are scanning for the right type of flash as when I got my PCM back from the guy who flashed it, it had a frigging caprice L99 knock module in it. I got this picture from one of Pocket's threads. He seems to know alot about these cars and has made a few very helpful guides. Im going to rewire my thirdgen harness into my LT1 harness this weekend and do my ALDL wiring just like this photo. Im going to put the scan port in the engine bay.
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Car: 1984 Z28 T-TOP
Engine: 355 Lt1 w/Hotcam
Transmission: TH700R4
Axle/Gears: 3.73 4th gen limited slip
Re: need help wiring my ALDL
You're right, what I meant was that the ALDL switched to 16 pin in 95 (OBDII type ALDL connection), the OBDII was in 96'. Good catch.
Last edited by pimpimusmaximus; 04-17-2013 at 09:26 AM.
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Car: 1984 Z28 T-TOP
Engine: 355 Lt1 w/Hotcam
Transmission: TH700R4
Axle/Gears: 3.73 4th gen limited slip
Re: need help wiring my ALDL
Ok, since I only have pins on the top row, can I go cut an ALDL with an "M" pin on it out of a car at the local junkyard. Will that still work? The CEL is triggered by the ECM so as long as I can jump the A,B and M pins it should flash the light???????
Last edited by pimpimusmaximus; 04-17-2013 at 09:23 AM.
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