Running 2005 duramax without Allison transmission.

Has anyone run a duramax without an Allison transmission?
What will it take to make the ecm work?

Thanks for any input,

Josh

The Duramax 6600 has been run with a 4L80-E automatic and the ZF 6-speed manual transmission.

If you want to use a different transmission, use the engine programming produced for one that was equipped with the ZF.

Jim

Thanks for the reply Jim.

Would you give me a little more advice? To use the programming for the 6 speed, would you: 1. Buy a tuner and the code 2. Find an ecm out of a 6 speed truck. 3. Send the ecm somewhere to be tuned. 4. Any other better alternatives?

Thanks,

Josh

Quote:

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Originally Posted by jet471

Thanks for the reply Jim.

Would you give me a little more advice? To use the programming for the 6 speed, would you: 1. Buy a tuner and the code 2. Find an ecm out of a 6 speed truck. 3. Send the ecm somewhere to be tuned. 4. Any other better alternatives?

Thanks,

Josh

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Josh,

The simplest (though not necessarily easiest) way would be to locate an ECM that went with a ZF equipped truck. Not many manual equipped trucks were produced, so it may be a long search. If you have a VIN number for a ZF equipped truck, you could have your local GM dealer reprogram a same-year ECM to match. Failing that, someone with an EFI-Live programmer may be able to help. Most things related to programming can be altered using the EFI-Live. If you consider that path, contact John at www.kennedydiesel.com about his programming services.

Also, the folks at www.pacificp.com (PPE) have installed the Duramax in a range of vehicles using non-standard transmissions. They even have a stand-alone electrical/electronic kit to do it (not necessarily cheap though). While I haven't spoken to them about it, they may have experience in programming for different transmssions.

Jim