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. |
Re: need help wiring my ALDL
Originally Posted by pimpimusmaximus
(Post 5539137)
what wires from the LT1 harness go to them? On the "D" connector ( blue ) |
Re: need help wiring my ALDL I have a 12 pin ALDL connector. the SHBOX diagram is for a 16 pin. |
Re: need help wiring my ALDL You need a obd2 aldl connecter |
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. |
Re: need help wiring my ALDL
Originally Posted by vetteoz
(Post 5539239)
http://shbox.com/1/1995_pcm1.jpg On the "D" connector ( blue ) |
Re: need help wiring my ALDL
Originally Posted by pimpimusmaximus
(Post 5539454)
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. It still is obd1 but with a obd2 connection. http://www.aldlcable.com/ |
Re: need help wiring my ALDL |
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? |
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 |
Re: need help wiring my ALDL
Originally Posted by pimpimusmaximus
(Post 5539394)
I have a 12 pin ALDL connector. the SHBOX diagram is for a 16 pin..
Originally Posted by pimpimusmaximus
(Post 5539394)
94 LT1's still had an OBD1 12 pin connector.
Originally Posted by pimpimusmaximus
(Post 5539394)
Again 95 is when they started with the OBDII stuff. 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 ) |
Re: need help wiring my ALDL |
Re: need help wiring my ALDL 1 Attachment(s) Attachment 257642 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. |
Re: need help wiring my ALDL
Originally Posted by vetteoz
(Post 5539774)
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 ) |
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??????? |
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