How to Delete GM AFM with MPM ECU Tuning Tool?

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 You can do the Active Fuel Management (AFM) delete or disable with the new MPM ECU/TCU tuning tool.  It will do ECM. TCM, some fuel pump module, but no BCM, MPM doesn’t do BCM’s.

 

Here is an example of deleting AFM on 2014 GMC Sierra 1500, work 100%.

 

Before starting, make sure that you have a battery maintainer in the car, you need constant power to make this readings and writing.

Don’t risk bricking the ECM.

 

Step 1:

Hit MPM PLUG in PCMTUNER software, once it opens. click on read ( see picture below)

(check how to install and activate MPM Plug software)

Delete GM AFM with MPM ECU Tuning Tool 1

Delete GM AFM with MPM ECU Tuning Tool 2

Step 2: hit Gather info, and then Read.
will give you the option to read transmission, ECM, and CCM. just go for the ECM to do this.

Delete GM AFM with MPM ECU Tuning Tool 3

STEP 3: SAVE ALL ORIGINAL DATA, ONLY THEN:
Click on ‘engine’, then go to fuel, and change DOD to ‘Disable’

Delete GM AFM with MPM ECU Tuning Tool 4

FUEL/DOD/DISABLE

Delete GM AFM with MPM ECU Tuning Tool 5

STEP 4: hit ‘Write’

Delete GM AFM with MPM ECU Tuning Tool 6

STEP 5: choose ‘write calibration’ on the prompt and hit write. wait until is done and take it for a ride to check it out

Delete GM AFM with MPM ECU Tuning Tool 7

http://blog.obdii365.com/2022/06/09/delete-gmc-sierra-afm-with-mpm-ecu-tuning-tool/

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