Cpl 2733 vs 2732

[Rawze]

(02-05-2019 )Unilevers Wrote:  maybe I'm outa whack here but I though he got a entire drop in engine for his truck? He just went down in Cpl with all the hard parts to match?:angel:

Looking back at his first post .. The new engine has different parts in it/different CPL. His mechanic said he could use the old ecm and it would be the same,.. comparing the old 2733 cal to a 2732,... they are not the same. different hard parts + different programming to match the hard part differences. He can't just slap on his old ecm to the side of his replacement (different CPL) engine. - He needs to use the program made for the replacement engine that matches its hard parts then have (whatever he needs to do) set to the correct program instead of using old ecm and old mis-matched program.

It is not quite as bad a mis-match (tier2 to a different tier-2) as bazdan902's mis-match (tier-3 to tier-2), but still is enough that it will not be quite right. The injectors have different chamber sizes, as well as other things mentioned above. Still, even the tier2 to tier-2 changes are enough that over time, it means losses in efficiency, etc. That can lead to thousands a year in wasted fuel (sometimes 1+mpg) and other costs unnecessarily.

The 2732CPL engine and its hard parts are about as fuel efficient as you can get. I know this because that is the CPL that I have. Would be a shame to see that gain go to waste. The 2732 is also a left-over converted CM870 block upgraded to 871 at factory on assy line if memory serves me right, and the 2733 is not.