How long does it take for the cumputer to learn?

F

Foxed

New Member

Mar 3, 2003

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Redlands, Ca

Jun 17, 2005

#1

• Jun 17, 2005

• #1

A friend of mine told me it takes four miles for our cumputers to adjust to whatever it is you add to the motor(maf, Tb, intake ect...). I was just wondering if this is true. It seems like to me it takes a little while longer than that.

 

C

custom89stang

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Dec 9, 2003

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Seattle, WA

Jun 17, 2005

#2

• Jun 17, 2005

• #2

in terms of exhaust i have heard anywhere from 100 to 1000 miles

 

Superhereaux

chicks make me feel inadequate

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Jul 30, 2002

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South Texas

Jun 17, 2005

#3

• Jun 17, 2005

• #3

i think it's 3 drive cycles, at least that's what i've heard


start the car and drive it till it warms up, turn off and let the engine get cold, repeat

try to vary engine speed (including wot) during the drive cycles

 

HISSIN50

"How long does it take to get help in here?

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Nov 29, 1999

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Jun 17, 2005

#4

• Jun 17, 2005

• #4

It completely depends upon what was done and how long and the type of driving. The learning curve is different for different components.

Good luck.

 

vikingpower

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Dec 6, 2004

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CWU Ellensburg, WA

Jun 17, 2005

#5

• Jun 17, 2005

• #5

Dont forget to disconnect the battery for a few minutes to wipe out the computers memory when you put new parts on.

 

N8Miller

I need NOS....make it 2 of the big ones

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Kingston, PA, USA

Jun 17, 2005

#6

• Jun 17, 2005

• #6

10-20 minutes of running time from what i have been told.

 

B

BaXTeR3221

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Jan 12, 2004

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Orange County, NY

Jun 18, 2005

#7

• Jun 18, 2005

• #7

Disconnecting the battery and depressing the brake pedal clears the computer of all its karmf data. I would imagion it prolly takes around 4-5 cycles to re-establish this data and only under varied driving conditions.

 

_jb_

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Mar 4, 2004

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Michigan, Berrien County

Jun 18, 2005

#8

• Jun 18, 2005

• #8

I thought about two weeks....

 

jrichker

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Jun 18, 2005

#9

• Jun 18, 2005

• #9

N8Miller said:

10-20 minutes of running time from what i have been told.

Click to expand...

I second that.

 

giddyup306

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Oct 22, 2002

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Jun 18, 2005

#10

• Jun 18, 2005

• #10

It could take 500 miles or more. A good example (not Fox specific) is if you have a very minor vacuum leak. It may not throw a converter inefficency DTC or peg out the fuel trim and throw a DTC for several hundred miles! Although these are just 2 specific examples, you can apply it to about any perameter.

Mike

 

txstang84

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May 21, 2005

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Tuscola, tx

Jun 18, 2005

#11

• Jun 18, 2005

• #11

don't forget if your driving habit's change, and as your sensors "deteriorate". over time all sensors lose their sensitivity and the computer has to compensate for those changes whether it's a O2, ECT, or an ACT sensor (ones that get covered in garbage)

in those respects, the computer constantly "learns" and has to adapt it's fuel and spark strategies based on driver input and sensor input.

 

giddyup306

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Oct 22, 2002

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Jun 18, 2005

#12

• Jun 18, 2005

• #12

txstang84 said:

don't forget if your driving habit's change

Click to expand...

Good point. I remember a specific example where I guy brought his car into the shop. Said it ran like crap untill about half way to the shop. Then by the time he got there it ran fine. Turns out his 16 year old son drove it the night before and rodded the **** outta it. It took 10 maybe 20 miles to clear up and get out of the "performance" (or whatever you want to call it) mode.