Q: p0449 & p0442 codes on 2007 Chevrolet Silverado 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
how do you test the EECS vent/solenoid for the circuit malfunction and where is it located
(1) Answer
you need a smoke machine and a scanner. you activate the soloniod from the scanner and watch the smoke from the vent line. better having a shop check it.

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