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Old 03-11-2007, 06:57 PM   #1
yazhere
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1995 SL1
Default Code 26 / Auto trans to manual swap

I have completed an auto to manual transmission swap for my 1995 SL. Donor car is a 1995 SL1. I also swapped the PCM. Installed a clutch safety switch utlizing the two purple neutral safety wires. Used the pink and lt. green wires for the reverse light switch. The 1995 SL had no code issues prior to the swap. The car and manual works great however I have a code 26. I have used the troubleshooting QDM from DIFFERENT RACING and the PCM J2 Pinout. I tested through the troubleshooting but do not seem to get correct readings from the J2 Pinout A2/Speedout, A9/VSS Hi, and A10/VSS Low

LoSaturn posted this in a prior thread:

When I did the auto to manual swap in my 95, I had to run a wire from the back of the cluster to the in-line body harness connector. I just went to the junkyard and cut off a gauge cluster connector and brought it home. Carefully removed one of the pins out of the connector and plugged it into my cluster connector in the correct location. Then ran the other end to the in-line body harness connector located behind the drivers side kick panel. You dont absouletly need it, but you will get a check engine light without it.

Could this be the problem?
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Old 03-11-2007, 07:23 PM   #2
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Default Re: Code 26 / Auto trans to manual swap

Heck of a time for Low Saturn to be on vacation.......
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Last edited by richpin06; 03-11-2007 at 07:28 PM.
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Old 03-12-2007, 10:19 PM   #3
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Default Re: Code 26 / Auto trans to manual swap

Its beacuse of the upshift light circuit not being connected. Thats the cause of the code 26.
...
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Old 03-13-2007, 09:04 AM   #4
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Default Re: Code 26 / Auto trans to manual swap

just the guy yaz wanted to see..................
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Old 03-13-2007, 10:14 AM   #5
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Default Re: Code 26 / Auto trans to manual swap

That's what I thought it was by looking through the wiring diagrams.

Manual PCM A2 Speedout to Center Console / IPJB Conn #4998 PIN D should exist. The problem is there is no connection/ dk grn-wht wire from the instrument cluster/speedometer & electronics ( A ) to the IPJB Conn #4998 PIN C.

The beauty of this project is I have a donor car in the garage right next to the '95 SL. As you can expect, the donor car is slowly becoming a complete teardown like Low Saturn has shown to where the frame is cut up and stacked.

Thanks for the messages Richpin and confirming Low Saturn.
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Old 03-13-2007, 10:40 AM   #6
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Default Re: Code 26 / Auto trans to manual swap

Quote:
Originally Posted by yazhere View Post
Manual PCM A2 Speedout to Center Console / IPJB Conn #4998 PIN D should exist. The problem is there is no connection/ dk grn-wht wire from the instrument cluster/speedometer & electronics ( A ) to the IPJB Conn #4998 PIN C.
Exactly. Just run a wire from the needed position from the back of the instrument cluster to the PCM side of the inline body connector behind the drivers side kick panel and you're done. It literally took longer to get the top dash panel off than it did to connect and run the wire. Just remove a length of wire with the pin still attached from your donor cars instrument cluster wiring.
...
Mike

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Old 03-13-2007, 12:26 PM   #7
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Default Re: Code 26 / Auto trans to manual swap

Wire confiscated from donor to be implanted.
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Old 03-13-2007, 12:40 PM   #8
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Default Re: Code 26 / Auto trans to manual swap

This sounds like a Frankenstein movie.Where the good doctor yaz is implanting evil things in the poor old monster...............
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