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squeone
08-02-2007, 01:53 PM
my car has always kind of adjusted to my driving, one day ill take it easy then ill punch it and get barely anything, but then ill start getting more aggressive with it for awhile and itll take off like a champ. sounds like pcm? where is it actually located so i can check?
coupe
08-02-2007, 02:22 PM
down by the brake pedal

Nothing you can really check though.
squeone
08-02-2007, 07:11 PM
it just seemed weird that it did that, i never asked the dealer when i bought it what it had on it... i was dumb and 16 and said "it looks sweet!"
cardude007617
08-02-2007, 07:26 PM
they make performance PCMs tho that make it shift faster and a few other things either MP Racing or MMS has em
lvemy3100
08-02-2007, 11:20 PM
Originally posted by squeone
it just seemed weird that it did that, i never asked the dealer when i bought it what it had on it... i was dumb and 16 and said "it looks sweet!"

PCM is constantly learning... drive crazy and it will learn crazy.. drive like grandma and it will want to drive like grandma does...
cardude007617
08-02-2007, 11:23 PM
u serious? like it actually learns how u drive and optimizes for that?
lvemy3100
08-02-2007, 11:33 PM
Originally posted by cardude007617
u serious? like it actually learns how u drive and optimizes for that?

in short... yes
cardude007617
08-02-2007, 11:56 PM
whats in long....haha. and does it like know what kind of driving mood your in be it aggressive or easy on the gas?
Nighthawk243
08-03-2007, 12:33 AM
The computer basically takes a reading of your RPM and throttle and then adjusts to meet what it normally sees on that within a certain amount of time. If you drive like you stole it, your PCM will usually help you do that... but if you drive slow, again, it'll adjust and help you stay within your normal driving.

Its not like those old cars where you held it to the floor, it jumped reguardless of how you drove normally.
cardude007617
08-03-2007, 12:59 AM
so how long does it store this info
purp99grandam
08-03-2007, 09:58 AM
This is to an extent of course. Its not like it will supply more/less fuel or anything like that.

Im more of an old school EFI guy so im not really up on the new stuff but I dont see the computers of today even changing the fuel/timing tables to support your driving habit.