the adaptive learning

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05-18-2009, 09:53 AM

#21

ski

4th Gear Member

Join Date: Mar 2006

Location:

Posts: 1,470

Quote:

Originally Posted by ShadyNinja

weather wind sun all wee the same it was a calm sunny day
not a lot going on
car is a auto with stock 3.31 gears so not a lot of wheel spinning going on
the trans shifted about the same all day

I ran sum 13.3-13.4's before the disconnect

after a bunch of 13.6 and one 13.5

FWIW, don't do a disconnect if it's running good.

05-18-2009, 09:48 PM

#22

ShadyNinja

4th Gear Member

Join Date: Jun 2007

Location: Chicagoland

Posts: 1,257

I know but there was only 1 wat to find out that.

if its not broke.....

don't break it!!~~

05-18-2009, 10:34 PM

#23

slowstang06

2nd Gear Member

Join Date: Aug 2008

Location: Concord, NC

Posts: 348

so i have a lot of mods that are dependent on the tune... (lol TB and CMDPs!) and while before my tuner uploaded my dyno parameters to my handheld (id recommend having them do this for you guys, so if it gets sluggish, just retune yourself!) but this last time they didnt (since i got the TB and CMDPs =[) recently i've driven really conservativly (shifting before 2000 etc) so would disconnecting the battery for like 30 mins be ok, or would that risk putting me in safe mode?

05-19-2009, 10:38 AM

#24

ski

4th Gear Member

Join Date: Mar 2006

Location:

Posts: 1,470

Quote:

Originally Posted by slowstang06

Disconnecting the battery only removes the adaptive learning data(incl. max speed, max rpm, and # of times the rev limiter was hit) that's been stored in the ECU's KAM(keep alive memory). It should not alter or lose your car's tune.

05-19-2009, 11:57 AM

#25

157dB

Cut & Paste Expert

Join Date: May 2007

Location: NW Arkansas

Posts: 13,322

Quote:

Originally Posted by ShadyNinja

well here is some info.
I was at the drag strip

I made 3-4 passes, and decided to pull the cable to see if resetting the ecu would help out, I left it unplugged while we ate lunch (over 1 hour)

hooked it back up,

made about 5 more passes( temp ,wind etc were all about the same)
the last 5 passes were 1-2 tenths slower

Resetting the ecu FTL!

You basically just reset the adaptive learning back to the
factory defaults (bad).
You really should have followed the adaptive learning relearling procedure
before making those last 5 passes.

The engine was basically limping on the factory defaults.

No wonder the times were slower.
Were you expecting them to be faster why?