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Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

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Old 09-04-2003, 12:13 PM   #1
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Need 89 IROC wiring diagram
I need the wiring diagram that shows the location of the fusible links for the fuel pump and the ECM if anyone can help.
Thanks in advance.
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89 IROC original owner, 357,000 miles on original 305 TPI. Daily Driver for the last 21 yrs.
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Old 09-04-2003, 12:15 PM   #2
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as far i know, both are powered by a fuse in a holder near the batt
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Old 12-16-2009, 09:31 AM   #3
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Re: Need 89 IROC wiring diagram
I NEED A WIRING DIAGRAM FOR 5.7L 1989 IROC Z REBUILT CAR GROUND UP HAD TO PUT MOTOR IN IT I HAVE A GREEN WIRE AND A PURPLE WIRE FROM THE LOOM THEY ARE SOLID NO STRIPE ON THEM CANNOT FIGURE WHERE THEY GO CANNOT FIND A WIRING DIAGRAM FOR THIS I HAVE FOUND BASIC WIRE DIAGRAM DOSENT HELP CANNOT FIND A PPL OR GRN WIRE ON THEM I NEED A MORE DETAILED DRAWING CAN ANYONE HELP THANKS
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Old 12-16-2009, 03:22 PM   #4
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Re: Need 89 IROC wiring diagram
http://www.berlinetta.info/C100.htm

try this or the search button

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Old 12-19-2009, 07:24 PM   #5
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Re: Need 89 IROC wiring diagram
http://www.austinthirdgen.org/index.php?pid=19

Hopefully the OP has figured it out after 6 years, but for future searches the ECM/Fuel pump relay fuse is in a small case behind the pass headlight
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Old 12-19-2009, 08:48 PM   #6
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Re: Need 89 IROC wiring diagram
I dont know how different your wiring is from my 86 IROC but here is a page that has the 86 wiring. It's loaded with color coded wires too. Good luck.
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Old 12-19-2009, 08:53 PM   #7
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Re: Need 89 IROC wiring diagram
Quote:
Originally Posted by Viking View Post
I need the wiring diagram that shows the location of the fusible links for the fuel pump and the ECM if anyone can help.
Thanks in advance.
In my 86 IROC, the fuse is by the battery and its mounted to the fender. The fuse (in my car) controls the Fuel Pump Relay, MAF Burn Off Relay, and the MAF Power Relay. ECM fuse, I dont know buddy maby in the fuse block?
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Old 02-14-2011, 12:28 AM   #8
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Re: Need 89 IROC wiring diagram
ya the little black cylinder is the fuse? a positive wire goes from the alternator in my car to the + battery, and i have 2 wires left on the other side of the cylinder poking out. fuel pump isnt clicking on, and didnt happen til i took my battery out.
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Old 02-14-2011, 12:28 AM
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