2013 ISX 15 CM2250 Low acceleration, power, and mpg.

We just borrowed a buddies Inline 6 Data connector to perform our tests and such, and weren't able to drive with it connected. We are looking to potentially buy a Data Connector of our own if the cost offsets what we would spend at a dealer. As far as regen frequency, I can't tell you the exact parameter setting until I get back to a Data Connector, but it seems to be fairly infrequently. It seems pretty standard, and almost never occurs while I'm driving, although it has once before at a weigh-station. Unsure about the DPF and DOC, possibly something we will look into doing.

It seems to regen just fine, and doesn't seem to frequent or long lasting. It definitely feels lacking in power, and it's struggling to pass 35mph on even 6% grades, as I can't get enough power to shift up.

I definitely think taking it to a dealer is an option for those kinds of things. We aren't looking to tweak with anything specific in the calibration, but to simply update the calibration with what Cummins provides for our CPL. Do you think it could be as simple as that?

We have looked into the delete, but considering this is a used truck we just acquired not long ago, we don't wanna f with it too much. Besides, when we first started running, MPG seemed fine around 6.5-6.8. but has gotten worse, power was never there though. We haven't had any engine or ECM codes at all, so we have nothing to go on as far as diagnostics.

We have Cummins Insite on our machine, but we don't actually own the Data Connector yet as it's quite a purchase to make if we don't absolutely need it yet. (Looking like we might though)

Will definitely look into a forced regen! Thanks!

 

This is exactly what we are working on today, pulling the EGR system and cleaning all the carbon out, as most anything we've pulled seems to have a good bit of carbon build-up, but not completely plugged anywhere, we'll find out today though. Do you think it would limit it so far though? The truck is literally struggling up hills unless it's in a lower gear which seems completely unlike what this engine should be outputting.

We have checked the intake for boost leaks, 28PSI is maintained at the intake mainfold through heavy-load situations, we have leak tested from the turbo to the manifold, and there were no noticeable leaks anywhere in the system. Seems the CAC, turbo, intake manifold, and hoses are all airtight. This was one of our first thoughts as well.

 

That's actually a typo, I meant 35 mph. A fellow operator has the same engine as mine, with similar loads, can pull no problem up the same hills I can at full speed. So it seems to just be an issue with mine alone. I'm not looking to speed-queen up the mountain, but when every other truck is passing me, and I'm only able to go 30-35mph, it's not a great situation.