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Old 02-10-2015, 03:35 PM   #1
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Join Date: Mar 2012
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obd2 readiness drivecycle

Hi, Im looking for the obd2 drive cycles for the evap and secondary air pump for a 2003 93 linear
With a bad pump which throws a p0411 code, I am attempting to get all monitors in ready mode except the secondary air pump , as CT testing allows one monitor "not ready". It appears the air pump will stay not ready as long as you dont allow for more than 1 cold start. It appears that a second cold start (the next day) puts this in a ready mode and throws a pending code.
Unfortunatly, a second cold start seems to be the only way to get the evap system in a ready mode. If any one has gone through this or can point me to information on this, it would be much appreciated! Thanks snick
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Old 02-10-2015, 04:25 PM   #2
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Do you know if it's the pump or the check valve that is bad? Sometimes taking the valve off and cleaning and lubricating it will un-stick them, but usually if the valve gets stuck open then the air pump will fill up with condensation and that's what kills them. Worth a shot.
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