Why You Should Disable GM's Dynamic Fuel Management

Ever curious as to how often your 2019-2021 Chevrolet Silverado or GMC Sierra 5.3L and 6.2L is cutting off cylinders and entering the Dynamic Fuel Management mode? It's constant! This video should show you how/why our AFM/DFM Disabler or Pulsar LT in recommended to improve the longevity of your V8 engine.

[Legolander]

What is that device showing cylinders on, fuel level, speed, battery voltage, etc? It is very interesting.

[texasfan]

Will this prevent lifter failure in the 5.3 and 6.2 engines? It seems to be a very common issue with those trucks and from what I've heard, the DFM technology is the primary cause.

[VortexStriker]

Will this product constantly enable AFM so I can use 4 cyl all the time?

[abdullahalzuwayed]

what screen use for read i have at4 2021

[putz]

alot of us on forums waiting on the DFM ODB2 disabler, any ETA on them yet for the '21 10 speed?

[kCI]

No wonder why sales of 3/4 ton trucks is up so much.

[jimmytwotone]

Ya it disables the AFM but it also deteriorates the catalytic converters and u will have to buy new one's because it's melting the cat's because it doesn't ever drop cylinders and the catalytic converters go bad they don't tell u

[danburz]

This video doesn't make any sense at all ?! You show us the difference in 4-3-8 cylinders but you don't explain anything else it's going on with the rest of those read out numbers