I have a 2001 Chevy Impala 3.8 vin k. I can't get two emission monitors to run. One is the Cat and the other is evap. I need one of them to pass the yearly emission test. No matter how i drive it the cat won't run. The best part is when i run the evap with the scantool it always aborts the test during the purge part of the test. It opens the purge then close to test tightness of the system then releases that pressure. It is when it slowly activates the purge. It gets to 31 percent and then aborts. Sets no codes. I tried another purge valve with no luck. I put a new float cause the old one was acting up. No matter what it always aborts. Anyone run accross the problems i been having.
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