Honestly this is the first time I ever heard about resetting your computer. You really do not need to. What the Superchips programmer does is simply read your stock settings, saves them then replaces it with what choices you make with your programer. Now here is a big mistake the programmer does NOT recognize what mods you have made to your truck i.e. exhaust CAI things of that nature. If you go to the Superchips website yes it asks you what have you done to your truck or what are you going to do to it. All that is for is sales. It lets them know what your spending your money on. If you do not believe what I am saying than simply call superchips directly they will tell you. If you are actually looking to have a computer that understands your mods you will need to actually have to proffesionally get your computer reprogramed with what you have done to your motor. That costs some money also. There are shops out there that will do it. I hope this helps.

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Modern cars and trucks with an automatic transmission will "learn" how to run your vehicle based on driver behavior. There are around 700 different algorithms that a car computer uses to adjust things like shift point, throttle advance, and brake engagement. It will also try to optimize the truck based on responses it gets from the various sensors. Although we may think that every car and truck that rolls off the factory floor is identical, they are not. Minor manufacturing differences can make some vehicles different from others in the amount of knocking/pinging, oil consumption and fuel economy.

The "break in" period is for both mechanical and electronic parts. Powertrain Control Module (PCM) is kind of like the cetral computer in the car/truck. When it comes from the factory, it is in its base level mode, containing the average and safe settings for the powertrain. As you drive the truck more and more it continuously makes adjustements to its programming with the expectation that after the first 8.5 hours of operation, the settings are fairly stable and will not change that much thereafter.

So if you alter your truck after the initial break-in period, the PCM will still recognize that change and adjust itself to it, but over a longer period of time than if you reset it and force it to relearn all of the settings from scratch.

 

I have a 2003 Hemi and i was trying to reset my pcm after changing the oxygen sensors and I could not find a pcm fuse.
Its not in the fuse box

 

Look at fuse number 23

 

WOW, thank you for all the information, So back to my question, do you think from just adding a K&N drop in filter and a magna flo muffler I need to reset it or not?

Thank you all!!!

 

Is that for the 4.7 also? Pulling out fuse #23 and putting it back in will reset it?

 

The fuse number is different for some years. Look at the bottom of the fuse box lid for PCM/SKIM.

Cableguy, no do don't have to reset it for those mods. It will learn all by itself.