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OBD1 to OBD2 conversion harness

Old Jun 8, 2023 | 12:24 AM
  #16  
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Default HARNESS

hey id like to get one of those harness so i can read codes on my 1994 dodge dakota which is similar to the older jeep models email me at just_lang2001@yahoo.com hope to hear from you soon
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Old Jun 8, 2023 | 06:06 AM
  #17  
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Year: 1995
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Originally Posted by izumi32
hey id like to get one of those harness so i can read codes on my 1994 dodge dakota which is similar to the older jeep models email me at just_lang2001@yahoo.com hope to hear from you soon
Recheck your email address

Last edited by Cummins93; Jun 8, 2023 at 06:08 AM. Reason: More info
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Old Jul 1, 2023 | 05:57 PM
  #18  
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Default Dakotas

Throw me in on the dakotas too. I'd be interested to see if this is a good solution. timbrwolf1121@gmail
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Old Oct 10, 2024 | 05:02 PM
  #19  
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Originally Posted by Cummins93
Welcome to the forum. Yes this actually took off after I had ended the project due to lack of interest. I sold of the prototype harness and then started to get multiple requests for them.

They currently are for sale for 465.50 shipped. You must use a 96 ecu to have a working tach. I try to keep a few ecus in stock. A 97 to 99 ecu will run the engine. Never attempt to flash a 97-99 to the 96 cal.
Hello, interested in this for a YJ. Please email mattjanssen921@gmail.com
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Old Oct 13, 2024 | 02:04 PM
  #20  
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This is perfect, it would allow to put the XJs on a dyno.
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Old Oct 14, 2024 | 04:08 AM
  #21  
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Originally Posted by PLRX
This is perfect, it would allow to put the XJs on a dyno.


Yes it will you can contact me at Trevor.skankfootracing@gmail.com
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Old Oct 14, 2024 | 10:59 AM
  #22  
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Year: 1991
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Originally Posted by Cummins93
Email sent
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Old Oct 14, 2024 | 10:56 PM
  #23  
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Default Me interesa para mí xj95 ✌🏻

[QUOTE=Cummins93;3598080]



Ya tengo listo un arnés de conversión que funciona para los Jeep XJ de 1991 a 1995. Esto permitirá que todos los usuarios de OBD1 puedan realizar modificaciones con los sintonizadores HP. Haré más si hay suficiente interés.[/QUOTE

Me interesa para mí xj95 , precio estoy en Mexicali b.c ✌🏻 saludos espero respuesta
]
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Old Nov 28, 2024 | 08:36 PM
  #24  
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From: Pryor
Year: 1993
Model: Grand Cherokee (ZJ)
Engine: 4.0L, 242
Default ZJ conversion

Still making these?
Work on an OBD1 1993 ZJ w/ AW4?
I don't see why not.
How well does it work with all the inputs/outputs of the OBD1 sensors?
Is that why some tuning will be necessary with HP Tuners?

Last edited by GrayghostZJ; Nov 28, 2024 at 08:47 PM. Reason: Add questions
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Old Nov 28, 2024 | 09:04 PM
  #25  
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Year: 1993
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Originally Posted by GrayghostZJ
Still making these?
Work on an OBD1 1993 ZJ w/ AW4?
I don't see why not.
How well does it work with all the inputs/outputs of the OBD1 sensors?
Is that why some tuning will be necessary with HP Tuners?
How about the return fuel system? Pressure?
1 o2 sensor?
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Old Nov 29, 2024 | 05:28 PM
  #26  
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The stock sensors remain in place.

I'm still making them per order. I've had customers report leaving the fuel system alone with no issues. Others have removed the vac reference and capped the line. I do warn people that they will have a CEL for the 2/2 o2 sensor but some have reported no CEL. The CEL will be present for the evap system.
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Old Mar 5, 2025 | 10:24 PM
  #27  
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Default Still around?

Originally Posted by Cummins93




I have a working conversion harness for the 91 to 95 Jeep XJs done. This will let all of the OBD1 guys/girls be able to tune with HP tuners. I will make more if there is enough interest.

are these still available? I just came across this and have a 94 that I want to hook my hp tuner to. If so email me at Todd.hughes77@gmail.comremoved) and we can discuss

Last edited by Veeb0rg; Jan 13, 2026 at 06:09 PM. Reason: Removed personal information.
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Old Jan 11, 2026 | 02:01 PM
  #28  
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From: Pryor
Year: 1993
Model: Grand Cherokee (ZJ)
Engine: 4.0L, 242
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Please email Zac @
(removed)
I have determined this is my way to go. I want to get the ball rolling.

Last edited by Veeb0rg; Jan 13, 2026 at 06:09 PM. Reason: Removed personal information.
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