PCM Learning
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Instructor
Joined: Feb 2004
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PCM Learning
I have a 2002 Coupe MN6, with the Borla Stinger Exhaust and Halltech SSM CAI will the computer adjust itself to even out the air/fuel ratios and perform better? And what can I expect in horespower and throttle response difference? Thanks everyone!
Melting Slicks
Joined: Feb 2001
Posts: 2,803
Likes: 358
From: Northville, MI
A PCM relean can take as little as 50 miles and as long as 200+ miles. Some of the parameters are updated ever minute or two and some are updated every 10 minutes (LTFT's). Also, some take 5 to 10 cycles and some take 20 cycles (start/drive/stop). The longest to take effect, as I recall are the LTFT's. There are 23 parameters in the PCM that relate to performance. Been a couple of years since I last looked at that info, but I believe it is correct. Best way to measure the relearn is to run a 20 minute test/scan run.
Advanced
Joined: Oct 2005
Posts: 94
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From: Buffalo NY
Originally Posted by chriscostas
I have a 2002 Coupe MN6, with the Borla Stinger Exhaust and Halltech SSM CAI will the computer adjust itself to even out the air/fuel ratios and perform better? And what can I expect in horespower and throttle response difference? Thanks everyone!
