1997 s90 volvo unable to smog
When i apply a obd2 to this car it reads that 6 monitors are not ready i have driven the car(1977 s90 volvo) for 150 miles and still get the same readings how can i fix this ,any help would be wonderful,Thanx
Be sure you drive the car at highway speeds, from full cold to operateing temperature. speed up at light throttle and heavy throttle. Idle for some time. If you feel you've done all those at some point then make sure your not loseing power for any reason.
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