PCM reprogram
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Senior User
Joined: Mar 2002
Posts: 158
Likes: 0
From: mid michigan
PCM reprogram
While I was at the dealership getting the computer set for the largest tire it could, I complained about the long shifts. The tech took a look and told me my settings was for the softest shifts. He changed it so it shifts much faster. That seemed good. Until reading about this kind of stuff on this site.
If I've gather things right, the engine was detuned for the quicker shifts. It did seem slower after the reprogram.
So, okay the best fix is the modified valve & spring through diablo or other sources.
The question is now I assume I need to reprogram again. Should I go back to original? Will there be something in between?
I have the Supertuner Reprogrammer on my christmas list. If I don't get it, I'll buy it in January.
Steve
99 SD, V10, EC, SB, LARIAT.
315-75-16 ProComp XTerrains M/T ClassicII 16x10
Fabtech 3.5 lift kit, Bilstein shocks
More to come I'm sure.
If I've gather things right, the engine was detuned for the quicker shifts. It did seem slower after the reprogram.
So, okay the best fix is the modified valve & spring through diablo or other sources.
The question is now I assume I need to reprogram again. Should I go back to original? Will there be something in between?
I have the Supertuner Reprogrammer on my christmas list. If I don't get it, I'll buy it in January.
Steve
99 SD, V10, EC, SB, LARIAT.
315-75-16 ProComp XTerrains M/T ClassicII 16x10
Fabtech 3.5 lift kit, Bilstein shocks
More to come I'm sure.
Post Fiend
Joined: Jan 1997
Posts: 23,165
Likes: 18
From: Enjoying the real world.
PCM reprogram
If I were you I'd go back the original program and install the Diablo shift valve. It'll work with any of the factory programs so you might as well not drive with the sluggish program.
