Ignition Coil Wiring

[Spikehaus]

Does anyone know the correct wiring arrangement for the ignition coil?

I am having difficulty find the correct wiring diagrams for 1986 sierra, this was the year when every was switched over so the diagrams change!

Anyway as far as I can tell, the ignition coil centre terminal is connected to the distributor cap

I am then left with the black push on terminal (with an additional plug in component that is connected to the mounting bracket screw) and 2 Nr green wires.

Logic says that the black is the negative (-), but Dogwoods diagram contradicts this!

Can anyone help or have photos ???

[dogwood]

Originally Posted by Spikehaus

.

Logic says that the black is the negative (-), but Dogwoods diagram contradicts this!

Can anyone help or have photos ???

Don't blam me.....
Let me just check, I could have made a BooBoo...

[dogwood]

Nope, just checked.
That is how I did it.
I agree it looks wrong.
I ain't got the car here, so cannot take a pic to show you.
This diagram is only how I wired it up to get the engine running.

Still happy to be proven wrong, Incase I was just lucky..

(Sketch edited to make the black coil feed come from the ign switch, and not from the batt feed, Thanks AshG)

[Spikehaus]

Did you have a plug in component on the black (+) I really appreciate the help

[dogwood]

Not sure I know what you mean, sorry.

I did have a plug that went into the ign module.
My Haynes showed the Black wire going from that to the coil, and to the ignition
I don't have the manual here to double check.

David

[HandyAndy]

Nick....
i,m following this thread with hope as i,m doing my electrics too

do you mean a small condensor/ or suppressor thing attached to the black wire from the solenoid? as my engine loom also has one of these things,....not sure what its actually called tho.

andy

[Land Locked]

Originally Posted by Spikehaus

Does anyone know the correct wiring arrangement for the ignition coil?

I am having difficulty find the correct wiring diagrams for 1986 sierra, this was the year when every was switched over so the diagrams change!

Anyway as far as I can tell, the ignition coil centre terminal is connected to the distributor cap

I am then left with the black push on terminal (with an additional plug in component that is connected to the mounting bracket screw) and 2 Nr green wires.

Logic says that the black is the negative (-), but Dogwoods diagram contradicts this!

Can anyone help or have photos ???

DIN spec wiring uses brown as negative and any other colour for positive also very common to use black for coil pos and green for the trigger.

[AshG]

Originally Posted by Land Locked

DIN spec wiring uses brown as negative and any other colour for positive also very common to use black for coil pos and green for the trigger.

as far as i am aware even on newer fords with electronic ignition its still green for negative trigger. but they changed the coil +ve to purple.