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94 civic si ecu harness question. 3 yellow/green and 3 yellow/white?

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Old Jul 4, 2015 | 08:28 AM
  #1  
Hatch3d's Avatar
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From: northern nc
Default 94 civic si ecu harness question. 3 yellow/green and 3 yellow/white?

Background

Im currently putting a d15z1 in a si body and I'm having to wire the engine part of the harness cuz the guy that owned the si cut the wires in the bay before the connectors.

i got 80% of the wiring done yesterday (everything but yellows, whites, the orange wire with 3 wires in it, and the blue wire (for the d15's extra engine connector)

can someone PLEASE tell me what the YELLOW/GREEN and YELLOW/WHITE wires go to? theres 3 of each and a solid yellow.

Im pretty sure i can figure out to wire up the extra connector but if anyone has any input on that it will be much appreciated

thanks
-phill
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Old Jul 4, 2015 | 04:33 PM
  #2  
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Default Re: 94 civic si ecu harness question. 3 yellow/green and 3 yellow/white?

Yellow/green is usally for map,fan,h20 and icm

Yellow/white tps

Yellow injector 4

The orange with the 3 wires in it is for the distributor.

This is only a guess as I don't know what you have plus Honda likes to change wire colors.without knowing where the wires are going it. To the ecu plug it hard to say for sure what they are.
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Old Jul 5, 2015 | 03:35 AM
  #3  
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Default Re: 94 civic si ecu harness question. 3 yellow/green and 3 yellow/white?

Download a factory service manual online it'll be worth your time
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Old Jul 5, 2015 | 08:23 PM
  #4  
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From: northern nc
Default Re: 94 civic si ecu harness question. 3 yellow/green and 3 yellow/white?

Originally Posted by 2point1
Yellow/green is usally for map,fan,h20 and icm

Yellow/white tps

Yellow injector 4

The orange with the 3 wires in it is for the distributor.

This is only a guess as I don't know what you have plus Honda likes to change wire colors.without knowing where the wires are going it. To the ecu plug it hard to say for sure what they are.
from what information i have tried to piece together you sound right 2point1.

i still have a yellow/white from the si harness that goes to the a/c stuff in the dash (didn't know what to do with that)

Pretty much everything was cake till i got to the yellows and whites, cuz there was also 3 white/green

also had a white/black left over from the d15 harness that the d16 harness didn't have a white/black for. but where it goes on the d15 connector theres an empty spot on the d16 connector.. so ill just run it and pin into the connector and hope for the best.

also there is a blue wire (holds 5 wires) for the d15 engine harness connector that the d16 doesnt have. so should i be able to trace where there pinned on the d15 and install in d16 as long as there are no wires already pinned?
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