ISX EGR CM870 programming service

2003 - 2007 Cummins ISX EGR CM870 ECM fuel mileage and power programming and tuning service - Not currently available

CM870 EGR 508hp / 584bhp 1450 ft/lbs programming service for 6/6 engines

CM870 EGR 557hp / 640bhp 1900 ft/lbs programming service for 6/4 engines

Estimated cost for this service:
Programming parameter changes - $50/hour
Reprogramming from $650  to  $1400
Estimated repair time: less than 1 day

Here are a few common programming services DCS can provide for CM870 ECMs

- Speed limiter, cruise control and tire size and/or rear end corrections.

- Automatic to manual transmission swaps

- Input, output and multiplexing settings

- Engine fan engagement temperature changes.

- Customer password changes.

*We are not permitted to "delete" VGT or EGR functionality on the CM870 ECM if it is for use on an engine with an EPA, CARB, Euro, or any other type of emissions certification.


Diesel Control Service’s performance programming has been dynamometer tested on healthy engines. Provided your engine is healthy you will get similar results. The dynamometer graphs you see are horsepower and torque at the rear wheels. Wheel torque numbers are very high because the rear end ratio and tire size acts as a torque multiplier.

Fuel efficiency: Higher horsepower programs have the potential to be more fuel efficient due to lower parasitic losses relative to engine power output. This is what the automotive industry is doing right now to meet EPA fuel mileage and emissions standards. High performance engines with forced induction and reduced displacement are what this new eco technology is all about. If we can get a smaller engine to make the horsepower of a larger one then we are saving fuel, and lowering emissions. Black smoke is fuel that didn’t finish burning. White smoke is fuel that barely started burning. You won’t get white or black smoke from the work we do at DCS.  We have done our testing and none of the programming services we offer will trigger higher than stock emissions in a grams per horsepower-hour standard.