Just thought I would make my 200th post with a little info I learned at the track.
If you have an aftermarket chip, resetting your computer is a good way to improve your truck's performance. At VMP this weekend I was talking to Jim from JDM about one of my runs and he suggested resetting the computer, which we did. I didn't get to make a second run because of the rain but on the way home the performance was remarkably improved. I was grabbing second gear chirps again and the truck was all around faster. It was an eye opener.
I guess the computer just gets adjusted to all your daily driving habits and becomes domesticated. Resetting the computer is now going to be one of my weekly/monthly maintenance taskers. That is unless someone can convince me it's bad.
I know this is an old wives secret but I forgot all about it.
R/S Dennis

 

Hi Shorty

Was this the first time you met Jim?

He is a nice guy and we can all learn alot from him.

I wish I could have gone to the gathering and to race with all of you.

Thanks for the tip.

 

Don C, I met Jim at the E-town gathering in march. He is a wealth of kowledge. I learned that tip from Robert Cuchuran exactly a year ago at the last F150 Ralley. Jim just woke me up.

 

Would this help 'times' at the strip?

Or, would the computer have enough 'time' to use the chip 'race settings'? I thought that it took 150 miles, 3 WOT runs, etc. to 'educate' the computer to the chips more aggressive settings?

I drive my 01L daily and usually sedately--until somebody heats up my blood-hehehe!

Dan

 

LIGHTNINROD, Good question and it makes sense. I cannot give a good answer but I do know that it made a significant difference in performance. I think it just erased all those suttle driving habits and allowed the computer to start from a new point. It is also something I have seen some fo the faster runners doing at the strip in between runs.

 

Toyota Supras are the same way. What happens with them that improves the performance is mainly in the timing curve (not the fuel curve)

I seriously doubt that the truck takes 150 miles to relearn factors that are used in a 1/4 mile blast... more then likely, once reset it defaults to the "optimum" values. When you drive your truck in hot weather, perhaps bad gas, the toyota ECU permanently (until a reset, anyway) modifies the timing advance.... Which is a good thing for daily driving.. but lets say you have octane booster in the car at the track, or race fuel, or whatever. This is going to hurt you.. so you reset the ECU and the timing curve is reset back to the optimum values and the car has no more 'permanent' knock retard.

Hooking up an OBDII scanner would prove what is changed before vs. after a reset. I'll bet money that 99% of it is just timing...