2007 H3 adventure 3.7L

[jakesz28]

Does anyone with a adventure 3.7 live around the quad city area? I want to pull a copy of your ecm program. I don't see how you make the change with hp tuner for the 4 to 1 low range. I may just be over looking it but I want to compare the shift tables to mine.

If I can't find one local would there be a willing h3 owner in Moab at the spring meet?


Thanks

 

[Reloader]

I didn't need to change anything when I put a 4 to 1 case in my 08. Speed sensor is on tail of transfer case so nothing changes there. Works fine with both my stock ecu and trans modules and my modified ecu and trans controllers.

 

[06 H3]

I put my 4:1 in and ran it as is. In 4lo my shift points sometimes are off but then again I can't compare it to a system with a 4:1 stock. I haven't driven one

 

[5gn-h3t]

I don't remember but does HPTuners even list the 4Lo shift tables? I have .hpt files for both models. I'll have to take a look at them.

 

[Schwarttzy]

The first time I tried 4:1 in an H3 I thought it was broken, then when the second H3 I drove behaved the same way I just went with it. It's a bit of pucker factor for me when it finally does shifts.

 

[jakesz28]

I have my .hpt file for a base model 07. I don't really see a table. I have a .hpt file for an 08 adventure which is totally different and I can see what I think is the table that needs changed. I can't believe how many more tables are used in 08.
I'm not sure if I should ask tech support about it or if I could find it it I had an adventure .hpt file. I think at times my shift points are pretty high now I just want to make sure that if I ever make a change to the 4 to 1 I'm ready for anything that might pop up. Maybe the 07 will shift by rpm and doesn't use an extra shift table.

 

[Steve #1]

The H3 switched to CAN in 08 so a number of things changed. If i'm not mistaken the tranny control went from a separate unit to part of the ECM (or was it the other way around?) from what you've said, I wouldn't be surprised if the low range tranny control wasn't added until 08.