Not sure where to look

[warlock007]

Anyone have a stock 2005 Z71 Chevy Avalanche tune? I looked on the tune depot sight but they dont have it, only 2004 or 2006 and my OS is different from theirs?

When I had the truck tuned they never downloaded it for me and now that im doing my own, im fixing what they did.

Thanks in advance.

Mike

[Wheelz]

06 will have a different accel pedal and won't be a compatible OS. Worst case you should be able to open the 04 tune and copy tables over to your modified tune; but you might be able to find an OS compatibility table on here and be able to use the 04 OS on your avalanche.

You might find your OS in other sections of tune file depot (suburban, silverado)? They just might have shared them across those platforms since they use the same engine

[warlock007]

The issue is that there are no other OS with the same numbers, the 05 was a flex truck so it's not an 04 and the 06 was defiantly different. I don't want to change th OS either until I determine the changes.

[Taz]

You never posted your tune - so people may not really know what you need.

The 2005 model year trucks used OS 12592618, 12606961, and 12612115 - plus perhaps more. Any of these support Flex Fuel operation. The Flex Fuel option in Gen III trucks was available since at least 2002 - perhaps earlier.

The Tune File Depot site has a 2005 Silverado Flex Fuel truck tune (5.3L L59 engine - OS12592618) that you could perhaps use as a guide.

[warlock007]

Thanks Taz, My OS is 12606961.

Hopefully I can use most of the one suggested.