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wiring issue by rusty_one
Started on: 12-02-2025 12:07 PM
Replies: 9 (118 views)
Last post by: rusty_one on 12-04-2025 12:22 PM
rusty_one
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Report this Post12-02-2025 12:07 PM Click Here to See the Profile for rusty_oneSend a Private Message to rusty_oneEdit/Delete MessageReply w/QuoteDirect Link to This Post

Hi All,
Slowly getting my Fiero closer to a first drive.
86 SE 2.8
II have a starting issue, keys are in and all the lights on the dash come on but no crank.
figured it was a clutch safety switch, pulled it all apart and it seems to be working, jumping the two wires together did not start the car.
I found a wiring diagram and shows a fuseable link, can anyone tell me where i would find this or a picture of it.
the diagram seems pretty straight forward so should be able to trace the issue
I can start the car by a trigger switch straight ti the starter and solenoid
Thanks for any help

[This message has been edited by rusty_one (edited 12-02-2025).]

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Vintage-Nut
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Report this Post12-02-2025 12:51 PM Click Here to See the Profile for Vintage-NutSend a Private Message to Vintage-NutEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
I found a wiring diagram and shows a fuseable link, can anyone tell me where i would find this or a picture of it.

Fusible Link 'G' is found at the Starter Solenoid

PS - If the Clutch Starter Safety Interlock Switch is actual 'dead', as a safety advocate, I recommend repairing it...

Clutch Starter Safety Interlock Switch + How-To Take It Out, Repair, Install
https://www.fiero.nl/forum/Forum2/HTML/148832.html

------------------
Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles

[This message has been edited by Vintage-Nut (edited 12-02-2025).]

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rusty_one
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Report this Post12-02-2025 02:09 PM Click Here to See the Profile for rusty_oneSend a Private Message to rusty_oneEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thank you!!
I tested the switch itself and it is actually working
my first step is i should have checked for power going in to it. (yellow wire)
I have a feeling it may be a fuse at the panel
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olejoedad
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Report this Post12-02-2025 02:29 PM Click Here to See the Profile for olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
My 86 SE had a ground wire from the starter mounting bolt to the driver side lower frame rail.
It would not start without the ground.
I bought the car with 30K miles on it, and the ground looked to be OEM.

Use a meter to check if you have 12v at the solenoid signal wire when the key is in the 'crank' position.
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rusty_one
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Report this Post12-02-2025 03:10 PM Click Here to See the Profile for rusty_oneSend a Private Message to rusty_oneEdit/Delete MessageReply w/QuoteDirect Link to This Post
Awesome
Thanks
this gives me a few things to check
by Crank i assume you mean not just in the on position but trying to crack the car
Appreciate it
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olejoedad
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Report this Post12-03-2025 03:02 PM Click Here to See the Profile for olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by rusty_one:

Awesome
Thanks
this gives me a few things to check
by Crank i assume you mean not just in the on position but trying to crack the car
Appreciate it


Yes.
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rusty_one
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Report this Post12-03-2025 11:32 PM Click Here to See the Profile for rusty_oneSend a Private Message to rusty_oneEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey all
i had a bit of time to play around with this.
I am actually getting no power to the yellow wire while cranking
please see diagram above
Is there a fuse associated with this?
I have a ecm ignition with a 10amp fuse as well as an empty sloy that says ignition.

where does the yellow wire power come from.
i guess i could pull apart the steering column but hoping some one has an idea where to trace the power source for my yellow wire
Thanks
Russ
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jelly2m8
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Report this Post12-04-2025 12:23 AM Click Here to See the Profile for jelly2m8Send a Private Message to jelly2m8Edit/Delete MessageReply w/QuoteDirect Link to This Post
The Yellow wire in your diagram comes from the ignition switch which is mounted externally on the lower end of the steering column, it i possible that switch is out of adjustment as there are slots to adjust it, or it could be faulty. Its easy to access, remove the lower cowl, the 2 steering column bolt sand loosen the lower nuts and you can slide the column back and down and there it all is.
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Report this Post12-04-2025 09:31 AM Click Here to See the Profile for Vintage-NutSend a Private Message to Vintage-NutEdit/Delete MessageReply w/QuoteDirect Link to This Post
Perhaps *this* thread {with pictures} can help you:
https://www.fiero.nl/forum/...090907-2-090390.html
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rusty_one
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Report this Post12-04-2025 12:22 PM Click Here to See the Profile for rusty_oneSend a Private Message to rusty_oneEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks guys i slept on it last night and thought it would be easiest to pull the cover then i can check for power at the switch.
I see switches are readily available, so this weekend i will dig in to it

Thank you!!
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