09-04-2013, 07:01 AM
|
#1
|
Registered User
Join Date: Aug 2005
Location: Alexandria, VA
Posts: 180
|
How do I reset the engine, learning mode?
I had to unplug my battery, now the low end power just seems flat.
I recall that there is a learning mode or time frame or something.
So I unplugged, entered the radio code and went on a spirited drive. That didn't help.
I searched...
Thanks@!
__________________
'02 Boxster Seal Grey or is it Gray?
-Alexandria, VA-
|
|
|
09-04-2013, 11:51 AM
|
#2
|
Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
|
Learning mode in the ECU happens automatically. The best thing to do is drive spiritedly in varying conditions (city and open road) along with a few start/stops that encompass about 50 miles over a couple of days.
Don't expect miracles in terms of additional power as the learning mode is intended to optimize engine performance for controlling emissions not maximizing power (though a clean running engine will typically produce ever slightly more power).
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
|
|
|
09-05-2013, 12:56 AM
|
#3
|
Registered User
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
|
Not quite true stoney ...
After disconnection of the battery, you have to reset the system by turning on the ignition (without starting the engine), for +/- 60 seconds, then switch off the ignition and remove the key for 10 seconds.
Restart car as normal.
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
|
|
|
09-05-2013, 08:17 PM
|
#4
|
Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
|
Quote:
Originally Posted by Steve Tinker
Not quite true stoney ...
After disconnection of the battery, you have to reset the system by turning on the ignition (without starting the engine), for +/- 60 seconds, then switch off the ignition and remove the key for 10 seconds.
Restart car as normal.
|
Interesting. I've never heard this nor seen any shop do it. Everyone I know simply disconnects the battery for a bit to clear the ECU. Then re-connect and it is supposed to start fresh. I'll test both approaches and post the results...
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
Last edited by thstone; 09-05-2013 at 08:28 PM.
|
|
|
09-06-2013, 05:23 AM
|
#5
|
Registered User
Join Date: Sep 2013
Location: Montreal, QC. (currently expat to Shanghai)
Posts: 3,249
|
Quote:
Originally Posted by Steve Tinker
Not quite true stoney ...
After disconnection of the battery, you have to reset the system by turning on the ignition (without starting the engine), for +/- 60 seconds, then switch off the ignition and remove the key for 10 seconds.
Restart car as normal.
|
Wow looks like I've never reset my ecu then. Tried however! Changed every possible sensors and other things can't remember what, all needed me to reset the ecu.
Like the OP I was simply unplugging the POS off the battery for 30min and that was it loll
Learning everyday, great forum!
__________________
______________________________
'97 Boxster base model 2.5L, Guards Red/Tan leather, with a new but old Alpine am/fm radio.
|
|
|
09-06-2013, 06:02 AM
|
#6
|
Registered User
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
|
If you do not do the reset routine will the car simply use the baseline that is already learned by the ECU?
I disconnected battery to do some door work and I just restarted, drove around the block to make sure the car ran ok. Then drove to work the next day.
Curious thing is that a few days later it appears my Fuel pump relay went bad.
Coincident or cause?
I hate when I try and do the right thing and get smacked down
__________________
2002 S - old school third pedal
Seal Grey
|
|
|
09-06-2013, 11:51 AM
|
#7
|
Registered User
Join Date: Aug 2005
Location: Alexandria, VA
Posts: 180
|
Thanks guys! I guess I haven't driven it enough, although yesterday it did get better, after doing the key in the ignition thing...
__________________
'02 Boxster Seal Grey or is it Gray?
-Alexandria, VA-
|
|
|
09-06-2013, 05:25 PM
|
#8
|
Registered User
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
|
Bob - "doing the key in the ignition thing" just resets the ECU parameters. You need to disconnect the battery again and then "do the key thing" to get the desired results.
Some cars run really sluggishly (like mine), others not so bad. Your ECU will relearn the settings eventually, but it takes about 4 or 5 heat / cooling cycles, thats why the key thing gets it set from the word go......
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT -8. The time now is 11:28 AM.
| |