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how different are Hf and Si harness on a 90-91 CRX?

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Old Apr 6, 2004 | 07:33 AM
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Default how different are Hf and Si harness on a 90-91 CRX?

I just did my B16 swap and I'm getting code 15. Since my car didn't come with a harness I got a HF harness from a 90 CRX since my car is a 90.

I've been reading a lot of things that the wires on the HF harness are completely differnet then the Si.....Is this true? If so does anybody have any diagrams to confirm this? From what I understand the HF only has a few added wires including EGR

thanx in advance
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Old Apr 6, 2004 | 11:58 AM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (wicked B16)

bump, someone has to know........Any wiring diagrams?
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Old Apr 6, 2004 | 12:13 PM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (wicked B16)

Well I found some things that are different but they all look the same. Here's the diagram
http://www.hondaswap.com/forum...29360

The only thing that is added to the HF harness then the Si harness are.....

A6 -- Purge Cut-Off Solenoid Valve (hf only)
A10 -- EGR Valve (HF Only)
B11 -- Clutch Switch (HF Only)
C10 -- Brake and Reverse Light Switch (HF Only)

ok that's it. Ok so I should be able to start up my car with no problems with the EGR not hooked up right? Or is there something that I'm going to have to switch?

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Old Apr 7, 2004 | 11:01 AM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (wicked B16)

hey i had a 90 HF and a 89Hf and never had a problem with any of them with sawps and never had a light so dont sweet it
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Old Apr 7, 2004 | 11:48 AM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (vteccrx909)

well the plugs on the 88-89 and 90-91 are a little different but what I want to know is if I can use a 90Hf harness in a 90 Si and have no problems with the swap? It's mostly related to me getting code 15.....IS there any slight wiring differences in the Hf harness compaired to the Si besides EGR?
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Old Apr 7, 2004 | 04:26 PM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (wicked B16)

me and my friend wired in a 90HF harness into a 90Si a long time ago.... only difference that i can think of off the top of my head was headlights (please do not ever **** with the headlight wires... we cut them, worse mistake of my life)
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Old Apr 7, 2004 | 08:40 PM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (rody084)

ok well I check all my wires and still getting no spark but it tries to start over? on the HF plug on the drivers side I noticed that about 4 wires have different colors then the stock Si harness. The Hf doesn't even match up to the Si wiring diagram I have which really sucks.

Some say just by switching around the pins or even replaing the harness with the correct yr will actually work. Well I switched around the pins and lined them up the best I could and I'm still getting a a slight spark for a split second and then code 15.

anybody have a 90-91 Si harness for sale?

O yeah I tested my Dizzy and ECU on another person's car and it starts up with no problems
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Old Apr 8, 2004 | 12:40 PM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (wicked B16)

Bump.............Somebody please help this is driving me nuts
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Old Apr 8, 2004 | 02:08 PM
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Default Re: how different are Hf and Si harness on a 90-91 CRX? (wicked B16)

ok well I figured out the problem so if anybody wants to reference to this here you go
http://www.imagestation.com/pi...g.jpg
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