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Old 07-04-2005, 10:09 PM   #1
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Exclamation reset ecu: how?

ok someone can move this after its answered. but its kinda urgent.


to reset the ecu do i simply disconnect the negative battery terminal and let it sit for a while? cuz the new intake is giving me a check engine light

i ask because i really don't wanna take my car in to a shop to have it fixed
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Old 07-04-2005, 10:23 PM   #2
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disconnect the positive terminal and stand on the brakes for a few seconds to drain all the power out..maybe let it sit for 5-10 minutes and hook it back up.
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Old 07-04-2005, 10:25 PM   #3
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its the positive? i thought it was the negative?

ok so another question, if i were to disconnect both, what order would it be?
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Old 07-04-2005, 10:40 PM   #4
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in all of my engineering courses, every electronic circuit/device we use the power always comes off first. Leaving a power source connected with no and/or an insufficient ground will cause damage to electronics.

I dunno where the ground wire first came from on cars though..
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Old 07-05-2005, 12:07 AM   #5
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I reset mine by just disconnecting the battery completely and letting it sit for 30 mins. Hooked it back up, it was cleared. When in doubt, just disconnect everything. lol
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Old 07-05-2005, 12:10 AM   #6
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take off the positive side, hit the brakes 5-6 times, and it should be reset. You may want to get the codes read before you do it though to make sure its something with your CAI
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