Power To The Coil In A 1977 Bus With FI Removed.
- Sluggo
- Wishin' I was Fishin'
- Location: Portland, Or.
- Contact:
- Status: Offline
Power To The Coil In A 1977 Bus With FI Removed.
For the time being I'll be using carbs in my Bus instead of FI. There is no power wire to the coil so I read the diagram and I guess that comes off of the double relay. Since I won't be using the FI components what else can I safely wire power to the coil from?
1977 Bus with Sunroof - "Lucky '77"
2000cc Type IV w/Dual Weber 36s,
Aircooled.net SVDA w/Compufire,
Redline Weber Fuel Pump,
Holley Regulator,
Half Ass Brush & Roller Rustoleum Paint Job,
Incomplete Custom Interior,
Dual Batteries,
Crunched Slider Door.
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- dtrumbo
- IAC Addict!
- Location: Mill Creek, WA
- Status: Offline
The power to the coil (terminal 15) comes from the ignition switch. That power then continues on to the double relay. If you temporarily suspend your FI system, you don't need to provide power to the coil as it's already provided by the ignition switch.
Maybe I'm misunderstanding your question.
Maybe I'm misunderstanding your question.
- Dick
1970 Transporter. 2015cc, dual Weber IDF 40's
1978 Riviera Camper. Bone stock GE 2.0L F.I.
1979 Super Beetle convertible.
... as it turns out, it was the coil!
1970 Transporter. 2015cc, dual Weber IDF 40's
1978 Riviera Camper. Bone stock GE 2.0L F.I.
1979 Super Beetle convertible.
... as it turns out, it was the coil!
- Amskeptic
- IAC "Help Desk"
- Status: Offline
Re: Power To The Coil In A 1977 Bus With FI Removed.
The FI system is completely independent of the car's electrical system. Find the loom that includes the wire that leads to the oil pressure switch. The other wire in that loom is a black wire that is the power SUPPLY to the coil from the ignition switch.Sluggo wrote:There is no power wire to the coil so I read the diagram ?
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
- Sluggo
- Wishin' I was Fishin'
- Location: Portland, Or.
- Contact:
- Status: Offline
Re: Power to the Coil in a 1977 Bus with FI Removed.
Amskeptic wrote:Sluggo wrote:There is no power wire to the coil so I read the diagram ?
When I scanned the diagram it looked like the harness from the double relay contained the wire to the coil. I hate the later wiring diagrams.
Funny you should say that. The next item I need to find is the Oil Pressure wire. The PO had the Reverse Light wire that goes to the coil hooked up to the Oil Pressure Switch instead!Amskeptic wrote:The FI system is completely independent of the car's electrical system. Find the loom that includes the wire that leads to the oil pressure switch. The other wire in that loom is a black wire that is the power SUPPLY to the coil from the ignition switch.
Colin
My '72 is wired the way you describe. Things are slightly different in the '77. Plus, even though I labeled the wires when I pulled them, now I'm discovering that the PO seemed to just plug things in wherever so the labels don't matter. Thank God I had the '72 to reference for the tail light wiring.
My Mom is taking the brat this weekend so I'll spend lot's of time going through all the engine compartment wiring. It seems like it's all there but was just hooked to all the wrong things.
1977 Bus with Sunroof - "Lucky '77"
2000cc Type IV w/Dual Weber 36s,
Aircooled.net SVDA w/Compufire,
Redline Weber Fuel Pump,
Holley Regulator,
Half Ass Brush & Roller Rustoleum Paint Job,
Incomplete Custom Interior,
Dual Batteries,
Crunched Slider Door.
------------------------------------------------------
- dtrumbo
- IAC Addict!
- Location: Mill Creek, WA
- Status: Offline
Re: Power To The Coil In A 1977 Bus With FI Removed.
This is why you're writing the book am I'm not. Much more better said!Amskeptic wrote:The FI system is completely independent of the car's electrical system. Find the loom that includes the wire that leads to the oil pressure switch. The other wire in that loom is a black wire that is the power SUPPLY to the coil from the ignition switch.
Colin
- Dick
1970 Transporter. 2015cc, dual Weber IDF 40's
1978 Riviera Camper. Bone stock GE 2.0L F.I.
1979 Super Beetle convertible.
... as it turns out, it was the coil!
1970 Transporter. 2015cc, dual Weber IDF 40's
1978 Riviera Camper. Bone stock GE 2.0L F.I.
1979 Super Beetle convertible.
... as it turns out, it was the coil!
- Sluggo
- Wishin' I was Fishin'
- Location: Portland, Or.
- Contact:
- Status: Offline
Oil Pressure Switch wire was hooked to the fan and the Coil wire had a slot connector forced into a female spade then routed to a LED toggle switch that teed into both the coil and fuel pump! I'm amazed it ran without starting a fire with all these hack jobs and misplaced wires I'm running into.
1977 Bus with Sunroof - "Lucky '77"
2000cc Type IV w/Dual Weber 36s,
Aircooled.net SVDA w/Compufire,
Redline Weber Fuel Pump,
Holley Regulator,
Half Ass Brush & Roller Rustoleum Paint Job,
Incomplete Custom Interior,
Dual Batteries,
Crunched Slider Door.
------------------------------------------------------
- Sluggo
- Wishin' I was Fishin'
- Location: Portland, Or.
- Contact:
- Status: Offline
Re: Power To The Coil In A 1977 Bus With FI Removed.
I should have looked in my dealership manual. The schematic is much better. It's the same just bigger and in larger sections.Sluggo wrote:I hate the later wiring diagrams.
1977 Bus with Sunroof - "Lucky '77"
2000cc Type IV w/Dual Weber 36s,
Aircooled.net SVDA w/Compufire,
Redline Weber Fuel Pump,
Holley Regulator,
Half Ass Brush & Roller Rustoleum Paint Job,
Incomplete Custom Interior,
Dual Batteries,
Crunched Slider Door.
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