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| | | Forums66 Topics128,078 Posts1,055,936 Members48,430 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Nov 2005 Posts: 19 New Guy | | New Guy Joined: Nov 2005 Posts: 19 | I am installing a newer style Dolphin programmable speedo. I have a 700R4 behind a LT1. I have a VSS pulse wire coming from the PCM.
The wiring harness plug that came with the speedo has green, white, black, red, and blue wires The instructions for the Speedo says to connect the red wire to the switched power, green wire to the pulse generator from the VSS and the black wire to ground AND to the PULSE generator. Does this sound correct? They want the green wire and the black wire to be connected together and then to ground AND the Pulse generator.
I know some of you have installed this brand speedo, how did you connect the wire?
Thanks Rick | | | | | Joined: Dec 2014 Posts: 678 'Bolter | | 'Bolter Joined: Dec 2014 Posts: 678 | Are you not using the Dolphin pulse generator? It should have two wires. One goes to ground, the other to the speedo input - doesn't matter which wire goes where.
1951 Chevy Panel Truck
| | | | | Joined: Nov 2005 Posts: 19 New Guy | | New Guy Joined: Nov 2005 Posts: 19 | I do not have a Dolphin pulse generator. I have one pulse generator wire coming from the PCM that provides a 4K signal. I guess I will connect the green wire to the pulse generator wire and the black wire to ground.
Thanks Rick | | | | | Joined: Dec 2014 Posts: 678 'Bolter | | 'Bolter Joined: Dec 2014 Posts: 678 |
1951 Chevy Panel Truck
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