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  #1  
Old 02-03-2013, 09:16 AM
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Default PCM Fuse to reset adaptives

Hey everyone,

I know you can reset your adaptives by pulling the PCM fuse, turning the key to on and waiting 30 seconds, then replacing it. But I've searched on here and couldn't find WHICH is the PCM fuse? Where is it located? Anybody have a good picture or diagram? I pored over the Service Manual, but I suck at reading wiring diagrams. Also, I had a hard time correlating that with what you can actually see in the fuse box.

Any help would be great. Thanks!
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Old 02-03-2013, 05:34 PM
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I never really understood why people are so worried about resetting adaptives. What difference does it make if your adaptives update from the current settings or from default settings?
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Old 02-03-2013, 07:08 PM
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Well, I'm buying the truck used next week, and I'm kind of OCD so I would like the truck to start from default settings to learn my driving style, as opposed to superimpose my style over the previous owner's.

Can you tell me what fuse it is? Thanks!
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Old 02-04-2013, 04:49 PM
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It has nothing to do with how you drive, but rather how much fuel the engine requires in a specific rpm band. If I remember correctly from school, the adaptives are stored in non-volatile memory and need to be reset with a scan tool.
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Old 02-04-2013, 04:59 PM
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Hmmm, interesting. On the modern Challengers, adaptives are reset by pulling Fuse #2. Some people have reported better track times when you do that, but I'm not aware of anyone actually getting dyno numbers.
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Old 02-04-2013, 05:17 PM
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Fuse M33 is for the A209 circuit which feeds B+ to the PCM.
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Old 02-05-2013, 07:14 AM
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Thanks RamTech, I appreciate it. It probably doesn't make any difference like you said, but coming from the Mopar racing side, we do it all the time so I figured it couldn't hurt.
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