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Old 03-17-2009, 11:44 PM   #1
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Answer please?

My battery died on my car if i had toms custom tune in it at the time it went dead do i lose his tune from my car? and if i dont doese it take awhile for the ECU to catch back up after the battery went dead because when i drove it it was driving really funny sputtering and bogging out?


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Old 03-18-2009, 01:01 AM   #2
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You shoudn't have lost the tune that was in your car. I was in afghanistan for almost a year and left no battery in my car. Tom's tune was sill present for duty when I returned. If you installed the tune correctly your factory tune should still be in your flashing device....or whatever it's called.....lol

Anytime I disconnect the battery for more than 15-20 minutes I turn the key to the "ON" position and wait for the guages to cycle, then I start the car and let it idle for 10 or so minutes before I do anything to it. I think it gives you ECU time to re-learn your car...don't quote me on that.....that's just what I do.

BTW where are you at in Texas? I'm from the Dallas area, but currently live in El Paso.
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Old 03-18-2009, 07:47 AM   #3
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I havent changed it yet but i was stationed in abilene tx im sure you know where that is i spent 6 years in the military and got pretty messed up and they retired me so now i am back in florida
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Old 03-18-2009, 08:36 AM   #4
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Check your coil pack. Mine went out on my SVT and it had the same symptoms as yours...sputtering and bogging out. I would push the gas all of the way in and my car had absolutly no power.
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Old 03-18-2009, 10:04 AM   #5
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Quote:
Originally Posted by Earls32 View Post
My battery died on my car if i had toms custom tune in it at the time it went dead do i lose his tune from my car? and if i dont doese it take awhile for the ECU to catch back up after the battery went dead because when i drove it it was driving really funny sputtering and bogging out?
You will not lose the tune, as it is stored in hard memory. the rest of what the car "knows" will be lost when power is taken away, as they are dynamic functions.

So, short answer, no, and, yes, just let the car run for a few and drive it around so it can re learn.

Is the car throwing any CELs?
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Old 03-18-2009, 10:27 AM   #6
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The car has to go through a "drive" cycle of reading all the inputs and checking the system before it settles down. Until then it will record a P1000 code internally.

The link below details the drive cycle you need to follow to clear the P1000 code.

http://www.obdii.com/drivecycleford.html
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Old 03-18-2009, 03:38 PM   #7
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^ Holy Crap ^
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Old 03-18-2009, 03:52 PM   #8
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It sounds worse than it is. Personally when I've had an error code and cleared it, I found driving around for a couple of days on trips of a decent length (i.e. not 1 or 2 miles) is sufficient to clear it.

The P1000 code is simply there to stop people cheating on their emissions tests by disconnecting the battery to clear trouble codes stored in the ECU.
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