North American Turbocoupe Organization



Chopped Engine Harness
23027 Offline
Senior Member
#1
Out of pure frustration I cut every wire to get the ECU/Engine Harness out.

Please tell me I didn't cut some badly needed wire. lol.

I have a new wiring harness to go in so ruining the current one in it doesn't matter.

I'm also curious if I can get rid of the other harness to clean up under the hood? I don't need cruise control or abs or any of those things.. I think I remember reading the fuel pump relay is connected in there.

Thanks!
87 Turbo Coupe
New Heart & Lungs as of 245,225km.
302 H.O Swapped.. Bolt ons.. Tremec 3550.. 4.10's.. 18's..
https://postimg.org/image/efv6lnn35/
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natmac3 Offline
Administrator
#2
Basically it doesn't really matter what harness is sending power/signal to/from the sensors as long as the wires used are appropriately sized/located and fused where necessary.

No reason you couldn't remove the stuff you don't really need, as long as you are careful about it.

Pin 22 is Fuel Pump Control.
Don't forget to account for the IRCM Fuel Pump control circuit as well!
IRCM pins 5 and 18.

Check out www.gt350mustang.com/eecspecsturbo.htm for more pinout details.
1987tc
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23027 Offline
Senior Member
#3
Thanks a bunch!
87 Turbo Coupe
New Heart & Lungs as of 245,225km.
302 H.O Swapped.. Bolt ons.. Tremec 3550.. 4.10's.. 18's..
https://postimg.org/image/efv6lnn35/
Reply

Robert Camp Offline
Posting Freak
#4
I think your frustration is only beginning.
Robert Camp
'86 Medium Regatta Blue TC, 5-speed, original owner.
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BJL Offline
Moderator
#5
Quote:Originally posted by Robert Camp:
I think your frustration is only beginning.
agreed
Brian Larkin
88TC 330,000 miles
Slightly Modified
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Paulie Offline
Banned
#6
Quote:Originally posted by BJL:
Quote:Originally posted by Robert Camp:
[b] I think your frustration is only beginning.
agreed [/b]
+1 +2 +3 +4 YOU BET
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Jeff K Offline
Administrator
#7
+1000

The 87-88 harness is VERY complex. Many parts of the harness carry not only wiring for the engine control system, but also wiring for the ABS and PRC system. Getting frustrated and randomly cutting wires will lead to hours and hours of extra work down the road.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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natmac3 Offline
Administrator
#8
Quote:Originally posted by 23027:
I have a new wiring harness to go in so ruining the current one in it doesn't matter.
I took this to mean he already had a direct replacement harness ready to install, and just didn't want duplicate wires laying around.

Make sure you know what you are cutting/removing before proceeding with a project like this.

And be sure to set aside plenty of time...
1987tc
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Robert Camp Offline
Posting Freak
#9
natmac3
Admittedly the post is confusing. If he has a completely compatible replacement harness, why the concern about cutting "some badly needed wire." Clarification would help, but just randomly cutting the harness out of the car probably leads to all sorts of problems, hence his frustration is only beginning.
Robert Camp
'86 Medium Regatta Blue TC, 5-speed, original owner.
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23027 Offline
Senior Member
#10
lol just the start Wink that's why it's called a project!
87 Turbo Coupe
New Heart & Lungs as of 245,225km.
302 H.O Swapped.. Bolt ons.. Tremec 3550.. 4.10's.. 18's..
https://postimg.org/image/efv6lnn35/
Reply





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