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Old 10-24-2010, 11:28 AM   #1
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Default Reseting ECU

I searched but couldn't find the steps on how to reset the ECU. Thanks.
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Old 10-24-2010, 11:35 AM   #2
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pretty sure you just take the positive and negative battery cables off and touch them together.
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Old 10-24-2010, 11:39 AM   #3
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pretty sure you just take the positive and negative battery cables off and touch them together.
where did you hear that
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Old 10-24-2010, 11:52 AM   #4
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pretty sure you just take the positive and negative battery cables off and touch them together.
Pretty sure you don't do that. I think you just take off the negative cable for a little bit, but not sure if that's all. I've heard you take the negative off and touch it to the positive while the positive is still attached. Anyone??
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Old 10-24-2010, 11:57 AM   #5
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Quote:
Originally Posted by turbostang7 View Post
pretty sure you just take the positive and negative battery cables off and touch them together.
On second thought, you may be right. I just read that you take both terminal cables off and touch them together for at least 10 seconds. Sorry to doubt you. But I wanna make sure this is correct
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Old 10-24-2010, 12:19 PM   #6
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Pull the pcm fuse for 15 min
or take the battery off "don't matter what side" and turn on the headlights and hit the brakes
Code scaner
Take your pick but don't touch the leads to gether, I have heard the pcm hold enough charge to damage it if the wires touch. Some say it don't I for one will not risk it.
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Old 10-24-2010, 03:11 PM   #7
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im sorry, I dont mean to hijack this thread but why would you need to reset your ECU?
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Old 10-24-2010, 03:38 PM   #8
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im sorry, I dont mean to hijack this thread but why would you need to reset your ECU?
what you doing here you aint gonna get yours running rite in here lol
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Old 10-24-2010, 03:49 PM   #9
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what you doing here you aint gonna get yours running rite in here lol
hahahah! thanks punk, I kinda figured that but Im just tryin to learn.
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Old 10-24-2010, 04:02 PM   #10
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punk ha i got underware older than you back to work lol
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Old 10-24-2010, 07:16 PM   #11
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You would reset the pcm to clear codes in most cases, but some do it after cleaning a Maf or replacing a o2 sensor, etc etc. Clearing the pcm will reset the long term fuel trims to help relearn the new sensor or cleaned sensors.
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Old 10-24-2010, 07:19 PM   #12
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Quote:
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You would reset the pcm to clear codes in most cases, but some do it after cleaning a Maf or replacing a o2 sensor, etc etc. Clearing the pcm will reset the long term fuel trims to help relearn the new sensor or cleaned sensors.
Sounds good, but what is the corrrect way to reset the pcm?? I disconnected the negative battery terminal for about 15 min, is that the correct way, or is there more to it?
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Old 10-24-2010, 07:25 PM   #13
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Sounds good, but what is the corrrect way to reset the pcm?? I disconnected the negative battery terminal for about 15 min, is that the correct way, or is there more to it?
Usually 15min is enough, however if you're trying to clear a code you need to use a scaner the obd2 systems have a better abillity to retain codes. What are you looking to gain from this?
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Old 10-24-2010, 07:33 PM   #14
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Usually 15min is enough, however if you're trying to clear a code you need to use a scaner the obd2 systems have a better abillity to retain codes. What are you looking to gain from this?
I just started a new thread about this whole ordeal. You may be able to help me, if you don't mind reading it. it's titled something like it's the newest thread that's been started.
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Old 10-24-2010, 07:57 PM   #15
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to reset your ecu is un hook the negative battery cable and turn your key and lights on for about ten secounds then turn evrything back off and hook cable back up and its reset
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