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07-22-2003, 05:09 PM | #1 |
Scooby Newbie
Member#: 14523
Join Date: Jan 2002
Location: Raleigh, NC
Vehicle:2002 WRX Blue -239.9WHP 247.7WTQ- |
is it possible to reset ECU, wait week and if you get no codes pass OBD2 emisisons???
Guys,
once every month or so i get a 420 cel that comes on and goes away after a while...is it possible to reset the ecu, wait a week or so to let the ecu be in a "ready" state and then pass obd2 test. OR do you all think that it will flag a cel once it is in a ready state immediately? Also, when you properly reset the ecu does it clear stored codes??? Any help is appreciated. Joe
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07-22-2003, 06:30 PM | #2 |
Scooby Guru
Member#: 177
Join Date: Aug 1999
Chapter/Region:
NWIC
Location: Austin, Texas, USA
Vehicle:The 93 W/EJ20K-sold Subaru-less :( |
yep that will work .. have done it my self ... just stay out of 5th gear..
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07-22-2003, 07:15 PM | #3 | |
Scooby Newbie
Member#: 14523
Join Date: Jan 2002
Location: Raleigh, NC
Vehicle:2002 WRX Blue -239.9WHP 247.7WTQ- |
Quote:
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07-22-2003, 07:27 PM | #4 |
Scooby Specialist
Member#: 7453
Join Date: Jun 2001
Chapter/Region:
BAIC
Location: Bay Area, CA
Vehicle:2014 Scion FR-S Hot Lava |
Hmm, I've actually had the CEL come on while in 3rd, 4th, and 5th (mostly 5th. 3rd only happened once). Maybe I'm just special though. Anyone know how many driving cycles are need for the ECU to go into the ready state?
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07-22-2003, 09:26 PM | #5 |
Scooby Specialist
Member#: 5030
Join Date: Mar 2001
Chapter/Region:
MAIC
Location: Martinsburg, WV, USA
Vehicle:1999 Legacy 2.5GT 19 Audi RS3, 13 Armada |
With the older OBD-II NA Ecus it was 2 full warm up cool down cycles. I would think the new ecus would be the same.
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07-22-2003, 09:54 PM | #6 | |
Scooby Guru
Member#: 8785
Join Date: Jul 2001
Chapter/Region:
SWIC
Vehicle:02 c_turner@ix. netcom.com |
Re: is it possible to reset ECU, wait week and if you get no codes pass OBD2 emisisons???
Quote:
There is a string of tests that are completed for the ready codes to say "pass" if you are lucky you can obtain this before the test and you will be fine. If any of the tests say "pending" or "fail" then you will fail the test and have to retest. Best to get an OBD monitor and watch the ready codes before you go in. CT |
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07-23-2003, 12:05 AM | #7 | |
Scooby Newbie
Member#: 14523
Join Date: Jan 2002
Location: Raleigh, NC
Vehicle:2002 WRX Blue -239.9WHP 247.7WTQ- |
Re: Re: is it possible to reset ECU, wait week and if you get no codes pass OBD2 emisisons???
Quote:
ya, i just ordered an actron obd 2monitor, should help determine when they are all ready...we'll see! |
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