PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

PCM Reset and learn time.......?

Old Mar 23, 2003 | 07:09 AM
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Default PCM Reset and learn time.......?

Hey guys, on the way to the track last night my SES light came on (either my new gas cap or my MAF). Being the paranoid person that I am I stopped and re-set the CPU to make sure that the light would go out and all was ok. Then I drove about 100 miles on cruize to the track. My first pass the car was a dog. Second pass it picked up 2mph, and third pass it picked up 1MPH. Is this normal after a re-set? How long does it take for the cpu to learn again?

TIA,
-Nick
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Old Mar 23, 2003 | 06:06 PM
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Default Re: PCM Reset and learn time.......?

Thanks!
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Old Mar 23, 2003 | 10:14 PM
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Default Re: PCM Reset and learn time.......?

This may mean nothing but when I put on my cat back ( Borla ) It took about 800 miles to adjust. <img border="0" alt="[USA]" title="" src="graemlins/patriot.gif" />
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Old Mar 23, 2003 | 10:15 PM
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Default Re: PCM Reset and learn time.......?

This may mean nothing but when I put on my cat back ( Borla ) It took about 800 miles to adjust. <img border="0" alt="[USA]" title="" src="graemlins/patriot.gif" />
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Old Mar 24, 2003 | 12:14 AM
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Default Re: PCM Reset and learn time.......?

I believe it usally takes about 100 miles of regular driving for the pcm to relearn. It needs to see different fuel cells, meaning different engine loads and speeds to learn.
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