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#1: 12-09-2012, 06:17 AM
Emissions test question
 
 itzed
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Title: Senior Member
Location: Fallston, Maryland
Car: 2006 Legacy SE - 5 Spd
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Hi. 2006 NA 2.5i. My state, Maryland, does OBDII testing and I'm due. Recently, the CE light came on and threw the P0420 code for O2 or cat problem. However, it went out after about two tanks of gas, came back on for short while again, and then went off again. It's currently off, and has been off for about 1000 miles. During this last time of being off, I have switched to mid grade gas, and have noticed a considerable improvement in low end torque and drivability, basically can't believe the difference it has made. The car is running great, and I'm real hopeful the light will stay off. Anyway, my question is, does the OBD II need to be cleared and reset, or will the car pass emissions since the light is currently off? I'd like to go ASAP and get it done while its off and not have to worry about it for two years, if I have to clear the codes, I will need to drive around for a good while before I can take it for the test. Thanks.
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