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I went to take my car in for emissions test, I had a code thats been on there for a while (P0430) so I re-set the code. They ran the test and i failed! said that the o2 sensor, catalyst, and the evaportitive system is not ready. I drove the car for about 25 miles up a frickin mountain and the sensors still are not ready. How do I get the sensor's to ready??
 

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Sometimes it takes many complete from cold engine to warm up cycles to get all readinesss monitors to be ready ,not just miles driven. Speed ups, COAST downs, and varying driving habits help.Cat and O2 will clear sooner than EGR and Tank Purge test. Tank purge test takes the longest and needs gas tank about 3/4 full helps.
 
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