Clearing P0420 code and ECU "readiness"
#1
Clearing P0420 code and ECU "readiness"
Anyone know how long it takes the ECU to return to ready after installing an o2 spacer and clearing codes? I have to get emissions tested soon and don't have a Vag-com to force the ECU to be ready for the OBDII test. Thanks in advance-
#2
RE: Clearing P0420 code and ECU "readiness"
Usually about a day of driving, less probably, but I usually give it 24 hours before I go back and check if its reset or not. Just go for a nice cruise, let the car get up to temp for a while, and you should be set. Thats more or less 'a drive cycle'.
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