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What harness to use? by Detainabull
Started on: 11-14-2015 08:57 PM
Replies: 7 (146 views)
Last post by: Detainabull on 11-15-2015 07:39 PM
Detainabull
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Report this Post11-14-2015 08:57 PM Click Here to See the Profile for DetainabullClick Here to Email DetainabullSend a Private Message to DetainabullEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey guys.... I have an 87 Fiero 2.5L. Switching over to the 3800SC. My question is do i use the 2.5 harness or the 2.8 harness with the 3800 harness. I ask this bc I'm losing this isuzu trans from my car and using a getrag 5 speed out of an 87 GT, which harness would be easier to use or would it make a difference. I would think bc the GT harness is already wired for the getrag to go with that one but I'm not exactly sure if it will really matter. Thanks
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Tuna Helper
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Report this Post11-14-2015 10:10 PM Click Here to See the Profile for Tuna HelperClick Here to Email Tuna HelperSend a Private Message to Tuna HelperEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'm no expert, but as far as I know all you need is the plug from the speedo sensor. Almost everything else gets replaced with the 3800 harness.
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Detainabull
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Report this Post11-14-2015 11:04 PM Click Here to See the Profile for DetainabullClick Here to Email DetainabullSend a Private Message to DetainabullEdit/Delete MessageReply w/QuoteDirect Link to This Post
Ok great....thanks!
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Australian
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Report this Post11-15-2015 06:48 AM Click Here to See the Profile for AustralianClick Here to visit Australian's HomePageClick Here to Email AustralianSend a Private Message to AustralianEdit/Delete MessageReply w/QuoteDirect Link to This Post
You also need to have the right automatic or manual harness i know i will struggle to find L67 5 speed manual harness off the shelf.

[This message has been edited by Australian (edited 11-15-2015).]

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Detainabull
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Report this Post11-15-2015 11:41 AM Click Here to See the Profile for DetainabullClick Here to Email DetainabullSend a Private Message to DetainabullEdit/Delete MessageReply w/QuoteDirect Link to This Post
So then the GT harness with the getrag plugs and wiring would be the better choice to use then and splice that into the L67 harness?
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olejoedad
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Report this Post11-15-2015 12:16 PM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Detainabull:

Hey guys.... I have an 87 Fiero 2.5L. Switching over to the 3800SC. My question is do i use the 2.5 harness or the 2.8 harness with the 3800 harness. I ask this bc I'm losing this isuzu trans from my car and using a getrag 5 speed out of an 87 GT, which harness would be easier to use or would it make a difference. I would think bc the GT harness is already wired for the getrag to go with that one but I'm not exactly sure if it will really matter. Thanks


From the Fiero harness...
C500
C203
B/U light connector
Speedo connector
Pigtail from the Battery Junction Terminal

Everything else will be from the 3800 harness.

Your 2.5 harness will work fine for this.

[This message has been edited by olejoedad (edited 11-15-2015).]

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Dennis LaGrua
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Report this Post11-15-2015 05:46 PM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post
If you intend to build your own harness it is a painstaking job. DarthFiero (Ryan) has been generous enough to share the wiring connections on his Sinister Performance website. Wire the connector pinouts as they are listed and everything should work out fine. If you wish to buy a pre-built plug and play swap harness Phil Dull (Injectech) seems to be the only reliable harness source right now

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Detainabull
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Report this Post11-15-2015 07:39 PM Click Here to See the Profile for DetainabullClick Here to Email DetainabullSend a Private Message to DetainabullEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'll definitely keep him in mind but I'd like to try this myself first. If I mess up I'll have to buy one anyways so I don't mind giving this a shot as I enjoy learning and doing new things.
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