PCM Wiring Question
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Teching In
Joined: Aug 2013
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PCM Wiring Question I'm currently rebuilding my harness and using LT1Swap direction. On the blue connector Pins 19 & 75 are listed as PCM Ignition Supply, I have the Current Performance Fuse box which has a Fused Ignition Power to Engine Computer. I connected Pin 75 to the Fuse Ignition Power to Engine Computer wire on the fuse box:
1. Can I splice Pin 19 & 75 together and connect them to the Fused Ignition Power to Engine Computer on the Fuse Box?
1. Can I splice Pin 19 & 75 together and connect them to the Fused Ignition Power to Engine Computer on the Fuse Box?
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Joined: Sep 2014
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From: alburnett, iowa
Nice looking 65, I had a 64 wagon for 9 years never got done. It was a rustfree california car. car needed everything but was a rock solid sbc car. drove it a lot as was picked on mustangs. I just cant get away from nova & cousin cars. 2dr 4dr wagon I dont care, any is fine.
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Teching In
Joined: Aug 2013
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Another question, on the SA-1000 Fuse Box from current performance wiring.
1. The cranking signal wire, supply cranking power to this wire when the key is turned to the start/crank position. Which wire is recommended to connect to.
2. 12V switched, splice to any 12V source during start and run. Which wire is recommended to connect to?
1. The cranking signal wire, supply cranking power to this wire when the key is turned to the start/crank position. Which wire is recommended to connect to.
2. 12V switched, splice to any 12V source during start and run. Which wire is recommended to connect to?
TECH Enthusiast
Joined: Sep 2014
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From: alburnett, iowa
whats the rest of wiring in car? I would say the original wire going to S-terminal would be starter signal wire. on 12v switched assuming wiring in car is original, I would check directly at Ignition switch with test light and volt meter. Figuring that out I would go to a fuse link with at least minimum 10 amp fuse. These old wiring systems really arent adequate for todays stuff in cars, but will work with planning. On my buick I used the stock hei plug for 12v key source.
Thread Starter
Teching In
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The wiring has been upgraded similar to the original wiring. So I'll splice the cranking signal wire to my starter wire going to the starter. I still have the 12V wire that was connected to my MSD, so I'll use that for the 12V key source.
TECH Enthusiast
Joined: Sep 2014
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From: alburnett, iowa
sounds like you got jist of it. I have my starter hooked up same as sbc was. I didnt buy any wiring as I simply used what was on car and tied in my silverado stand alone harness. Adding relays/fuse panel way LT1Swap.com shows it.