Instrument Cluster Wiring
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 39
From: EXTREME southwest CT
I'm on my phone so the diagram is tiny, but I don't see where coil power is going through the cluster.
Seems like a lighting diagram.
I *do* see power from the switch going to the fuel injector cooling fan, so I think this diagram is for an I-6.
You could just use *either* the TFI coil wire *or* the DSII coil power wire on the DS inner fender to trigger a relay for your HEI, and then it would work with the key
Seems like a lighting diagram.
I *do* see power from the switch going to the fuel injector cooling fan, so I think this diagram is for an I-6.
You could just use *either* the TFI coil wire *or* the DSII coil power wire on the DS inner fender to trigger a relay for your HEI, and then it would work with the key
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Cross-Country
Joined: Oct 2016
Posts: 68
Likes: 0
From: Alabama
I'm on my phone so the diagram is tiny, but I don't see where coil power is going through the cluster.
I *do* see power from the switch going to the fuel injector cooling fan, so I think this diagram is for an I-6.
You could just use *either* the TFI coil wire *or* the DSII coil power wire on the DS inner fender to trigger a relay for your HEI, and then it would work with the key
I *do* see power from the switch going to the fuel injector cooling fan, so I think this diagram is for an I-6.
You could just use *either* the TFI coil wire *or* the DSII coil power wire on the DS inner fender to trigger a relay for your HEI, and then it would work with the key
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 39
From: EXTREME southwest CT
Go to Gary's Garagemahal website and look at the ignition wiring section of the 1986 EVTM.
You can find diagrams for both DSII and TFI ignitions, with all the splices and connectors spelled out.
That manual breaks out each circuit individually, so there's not much distraction.
You can find diagrams for both DSII and TFI ignitions, with all the splices and connectors spelled out.
That manual breaks out each circuit individually, so there's not much distraction.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 39
From: EXTREME southwest CT
Start & Ignition - ???Gary's Garagemahal
Page 29 and figure 20 on page 46 show your 5.0l as it should have come from the factory.
Hopefully most of these connections are still there.
Easiest would be to pick up circuit #20 W/LB near where the coil used to be and bring it over to the starter relay.
Mount an ignition relay next/near to that and bring power from the new ignition relay back to your HEI.
But I have no idea how much, if any, of the original harness was hacked out by the person who swapped in the carb and HEI.
The idea of a toggle ignition switch makes me think too many beers and not enough brain cells were involved
Page 29 and figure 20 on page 46 show your 5.0l as it should have come from the factory.
Hopefully most of these connections are still there.
Easiest would be to pick up circuit #20 W/LB near where the coil used to be and bring it over to the starter relay.
Mount an ignition relay next/near to that and bring power from the new ignition relay back to your HEI.
But I have no idea how much, if any, of the original harness was hacked out by the person who swapped in the carb and HEI.
The idea of a toggle ignition switch makes me think too many beers and not enough brain cells were involved
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