proper way to reset or clear our cars computer memory?

mustanglouie · October 4th, 2008, 10:56 PM

I was wondering what is the proper way for completely resetting the computers in our cars?
I have heard a couple different theories. One is to just take off the neg. terminal and let the car sit for about 30 mins and then put it back on. But does this completely wipe out the memory of the computer? I have also heard that you could take the pos. and neg. terminals off the battery and touch them together for a few mins and that would completely wipe out the memory of the computer. So what is the correct way to completely clear the entire memory on our cars without hurting them?

beefmobile · October 5th, 2008, 01:20 AM

Damn you got me man. Never had that problem. Why you wanna wipe it out anyway? what tuner are you using?

mustanglouie · October 5th, 2008, 02:12 AM

I am using sct. I am trying a few different things to get my car to idle again. It is a long story...

navyman8903 · October 5th, 2008, 02:46 AM

call lethalperformance or brenspeed or blowbyracing they will help you. If you want to try your way then take the battery out for a day(8-12hours at least). Yes a day That how long it took for me. I did that trying to get rid of my check engine light before I tried to get my car NY inspected but I still had the codes on my computer, so that won't work. But give it a shot and if all else fails start with Blow-By Racing | 2005-2006-2007-2008-2009 Mustang Parts | 2005-06-07-08-09 Mustang Performance Parts then go to Lethal Performance, Performance Parts for Ford Mustangs, Cobras, Chevy Corvette C6, LS1 and last go to Brenspeed. Good luck and tell me how it goes.

07stanggt · October 5th, 2008, 10:40 AM

try leaving the battery unhooked over night. in the morning, hook the battery up and follow the retrain procedure that is in your owners manual. which is basically start the car, let it idle for 1 minute, turn on the ac, let it idle for 1 minute, then drive the car for 10 miles. but read it to make sure i didnt miss something. perhaps your problem isnt that you didnt wipe out the memory, perhaps your problem has been that you never retrained the pc right. The book says if you dont do that it can take days for you pcm to get retrained properly and maybe since you keep messing with it its just not doing it right.

October 4th, 2008, 10:56 PM	#1
mustanglouie Regular Join Date: Dec 2007 Location: Gainesville GA Posts: 64	proper way to reset or clear our cars computer memory? I was wondering what is the proper way for completely resetting the computers in our cars? I have heard a couple different theories. One is to just take off the neg. terminal and let the car sit for about 30 mins and then put it back on. But does this completely wipe out the memory of the computer? I have also heard that you could take the pos. and neg. terminals off the battery and touch them together for a few mins and that would completely wipe out the memory of the computer. So what is the correct way to completely clear the entire memory on our cars without hurting them? __________________ 07 whipple S/C,Frpp hot rod cams,o/r h, resonators,mac,4.10's,mgw shifter,roush rear springs, roush front bumper, Chrome 20in bullets

October 5th, 2008, 02:12 AM	#3
mustanglouie Regular Join Date: Dec 2007 Location: Gainesville GA Posts: 64	I am using sct. I am trying a few different things to get my car to idle again. It is a long story... __________________ 07 whipple S/C,Frpp hot rod cams,o/r h, resonators,mac,4.10's,mgw shifter,roush rear springs, roush front bumper, Chrome 20in bullets

October 5th, 2008, 02:46 AM	#4
navyman8903 All sissies going to Hell! 2008 BULLITT #3385 Join Date: Feb 2008 Location: maryland 20634, New york ithaca/ auburn/syracuse Posts: 3,303	call lethalperformance or brenspeed or blowbyracing they will help you. If you want to try your way then take the battery out for a day(8-12hours at least). Yes a day That how long it took for me. I did that trying to get rid of my check engine light before I tried to get my car NY inspected but I still had the codes on my computer, so that won't work. But give it a shot and if all else fails start with Blow-By Racing \| 2005-2006-2007-2008-2009 Mustang Parts \| 2005-06-07-08-09 Mustang Performance Parts then go to Lethal Performance, Performance Parts for Ford Mustangs, Cobras, Chevy Corvette C6, LS1 and last go to Brenspeed. Good luck and tell me how it goes. __________________ HARDCORE CREW BULLITT CREW FOUNDER #01 Bassani Crew Member #5 Used meziere electric water pump $150.00 PM me.

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October 5th, 2008, 10:40 AM	#5
07stanggt I Post Entirely Way Too Much 2007 GT Join Date: Mar 2007 Location: Ellicott City, MD Posts: 11,900	try leaving the battery unhooked over night. in the morning, hook the battery up and follow the retrain procedure that is in your owners manual. which is basically start the car, let it idle for 1 minute, turn on the ac, let it idle for 1 minute, then drive the car for 10 miles. but read it to make sure i didnt miss something. perhaps your problem isnt that you didnt wipe out the memory, perhaps your problem has been that you never retrained the pc right. The book says if you dont do that it can take days for you pcm to get retrained properly and maybe since you keep messing with it its just not doing it right.

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