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Q: My car failed emission test engine light has been on awhile on 2003 Chevrolet Blazer

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Results of emission koeo..........pass
koer..........fail
communication pass
tamper.......pass
mil command..fail
Troublecodes po128 coolant thermostat temp below po449 evaporative vent valve/solenoid cir po455 leak lg detected
(1) Answer
(2) Comments
128 is most likely a thermostat failing.

the evap codes need a shop with a scan tool, smoke machine and voltmeter to determine the failure.

Roy
the diag is about an hour labor with the correct tools. price?? do not know what has failed. it will not be cheap, thats about all i can say.

Roy
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