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Starting issue..
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10 May 2025 11:54 - 10 May 2025 15:14 #22890
by aardvark
Starting issue.. was created by aardvark
Hi folks ... Aardvark here.
I have a starting issue.. Starter cranks but when cranking, non power goes to the coil until I stop cranking.. thus the red time between the crank and run won't allow it to fire over.
We installed a bypass with a Toggle Switch so when the starter spins, it also runs power to the coil and the car runs.. In the run position there is coil power.
So. I've replaced the ICU , the starter relay (in fuse box) and the 2 ballast resistors, but the results are the same.
What is going on here?
I might add the car is a 1982
I have a starting issue.. Starter cranks but when cranking, non power goes to the coil until I stop cranking.. thus the red time between the crank and run won't allow it to fire over.
We installed a bypass with a Toggle Switch so when the starter spins, it also runs power to the coil and the car runs.. In the run position there is coil power.
So. I've replaced the ICU , the starter relay (in fuse box) and the 2 ballast resistors, but the results are the same.
What is going on here?
I might add the car is a 1982
Last edit: 10 May 2025 15:14 by aardvark.
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- NickTucker42
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11 May 2025 10:49 #22891
by NickTucker42
Replied by NickTucker42 on topic Starting issue..
I would also take a hard look at the ignition switch. Could be you have an issue there.
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11 May 2025 12:57 #22895
by aardvark
Replied by aardvark on topic Starting issue..
seriously the switch? It almost sounds too simple.
The car does start and run by jumping over with a toggle switch between the coil and top ballast resistor. I toggle it as I'm cranking the key/starter.
Is there any source for a wiring diagram of the circuit?
The car does start and run by jumping over with a toggle switch between the coil and top ballast resistor. I toggle it as I'm cranking the key/starter.
Is there any source for a wiring diagram of the circuit?
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11 May 2025 17:30 #22896
by NickTucker42
Replied by NickTucker42 on topic Starting issue..
Not all solutions have to be complex 
But, if the coil isn't getting power when in the key isn't in the start position but does in the run position then it stands to reason the key switch is a possible starting place. They have been known to fail.
I do have the workshop manuals, so I'll take a look at that section and see what else is there..

But, if the coil isn't getting power when in the key isn't in the start position but does in the run position then it stands to reason the key switch is a possible starting place. They have been known to fail.
I do have the workshop manuals, so I'll take a look at that section and see what else is there..
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11 May 2025 21:50 #22900
by aardvark
Replied by aardvark on topic Starting issue..
Thank You Sir..
It makes sense..
I can't get to it for a few days but will look to see what it takes to pull out the tumbler from the dash.
It makes sense..
I can't get to it for a few days but will look to see what it takes to pull out the tumbler from the dash.
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11 May 2025 22:40 #22901
by Rich928
Rich
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1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast
Replied by Rich928 on topic Starting issue..
Hello Aardvark,
I agree that the ignition switch is a good place to start.
I'll send you the 1982 928 wiring schematics from the workshop manual. It may take some head scratching to figure out the way the early 928 schematics were drawn up. Good news is all the information is there. As admin I have your email address.
I agree that the ignition switch is a good place to start.
I'll send you the 1982 928 wiring schematics from the workshop manual. It may take some head scratching to figure out the way the early 928 schematics were drawn up. Good news is all the information is there. As admin I have your email address.
Rich
Membership Chairman
Charter Member
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast
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11 May 2025 22:47 #22902
by aardvark
Replied by aardvark on topic Starting issue..
Thank You Sir..
It makes sense..
I can't get to it for a few days but will look to see what it takes to pull out the tumbler from the dash.
It makes sense..
I can't get to it for a few days but will look to see what it takes to pull out the tumbler from the dash.
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11 May 2025 22:49 #22903
by aardvark
Replied by aardvark on topic Starting issue..
Thanks Rich.. Got Your e-mail..
I'll look em over later.
I'll look em over later.
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12 May 2025 08:18 #22904
by aardvark
Replied by aardvark on topic Starting issue..
To the both of You.. Thanks for the good information.
I'm seeing what Rich has sent about pulling the dash apart to get to the Ignition Switch as being above my technical pay grade.
I ws able to pull out my ''63'' Avanti's Ignition but that was a simple 10 minute job. This car is overly complex, so I won't be able to do that.
So I'm left in a quandary of what to do... Have a Shop go at it and get rid of the toggle switch option...or... sell it as an 'Anti Theft" device..
I'm leaning towards the latter.
You see, the Car is going ''Up For Sale"" in a matter of weeks.
The Car has only 56k miles and is in very good shape. It has a few gremlins like a shot sunroof switch and the AC is not working, but overall, the Car is a beauty.
I HATE SELLING IT, but it's a Financial Decision..
So the decision needs made rather quickly...
If someone has interest, I'll let it go for around $34k.. which by the books seems about $6k less that value.
I'm seeing what Rich has sent about pulling the dash apart to get to the Ignition Switch as being above my technical pay grade.
I ws able to pull out my ''63'' Avanti's Ignition but that was a simple 10 minute job. This car is overly complex, so I won't be able to do that.
So I'm left in a quandary of what to do... Have a Shop go at it and get rid of the toggle switch option...or... sell it as an 'Anti Theft" device..
I'm leaning towards the latter.
You see, the Car is going ''Up For Sale"" in a matter of weeks.
The Car has only 56k miles and is in very good shape. It has a few gremlins like a shot sunroof switch and the AC is not working, but overall, the Car is a beauty.
I HATE SELLING IT, but it's a Financial Decision..
So the decision needs made rather quickly...
If someone has interest, I'll let it go for around $34k.. which by the books seems about $6k less that value.
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12 May 2025 08:42 #22905
by Rich928
Rich
Membership Chairman
Charter Member
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast
Replied by Rich928 on topic Starting issue..
To the both of You.. Thanks for the good information.
I'm seeing what Rich has sent about pulling the dash apart to get to the Ignition Switch as being above my technical pay grade.
I ws able to pull out my ''63'' Avanti's Ignition but that was a simple 10 minute job. This car is overly complex, so I won't be able to do that.
So I'm left in a quandary of what to do... Have a Shop go at it and get rid of the toggle switch option...or... sell it as an 'Anti Theft" device..
I'm leaning towards the latter.
You see, the Car is going ''Up For Sale"" in a matter of weeks.
The Car has only 56k miles and is in very good shape. It has a few gremlins like a shot sunroof switch and the AC is not working, but overall, the Car is a beauty.
I HATE SELLING IT, but it's a Financial Decision..
So the decision needs made rather quickly...
If someone has interest, I'll let it go for around $34k.. which by the books seems about $6k less that value.
>> I think there is some confusion here. The instrument pod doesn't have to be removed to access the ignition switch. It is just easier to visualize where the switch is and how to access it using pictures from the instrument pod removal. There is a connector cap that fits over the rear of the switch (oriented towards the front of the car). With the connector cap removed two small flat head screws must be removed, they hold the switch in place. The difficulty is accessing those screws from the footwell of the driver side.
Rich
Membership Chairman
Charter Member
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue
1979 928 5-liter track beast
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12 May 2025 14:51 #22906
by aardvark
Replied by aardvark on topic Starting issue..
got it.. in a few days I'll dig in.
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