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hypertech programmer truck won't start
I've used this hypertech programmerIII several times. This time it showed error code 78 and said to call hypertech. The truck will not start and they don't open till monday. Can anyone help me out? Thanks- captmike866
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- Forum: General, Performance Upgrades & Accessories
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Help with 06 2500hd 4x4
I recently purchased an 2006 2500hd 4x4 with the 6.6. The truck came with a hypertech programmerIII. Is this programmer any good and what are the best settings(stage I, II, III) for MPG and performance? Thanks, Capt. Mike- captmike866
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- Replies: 0
- Forum: General, Performance Upgrades & Accessories
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need help with upgrades 2006,6.6L,2500hd 4x4
she's a bone stock 2006,6.6L,2500hd 4x4. Which upgrades and product manufactorsdo you think? Where to start exahust or intake? I would like to lift the truck only about 2-3 " just to get a little larger tire onboard. Must stay hwy driveable. What about engine programmers? their everywhere...- captmike866
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- Replies: 4
- Forum: 6.6L Duramax Diesel
