TSBs

Vette Airflow DTC

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Vette Airflow DTC

This bulletin applies to 2005-2013 Chevy Corvettes (including Z08). The check engine light may be on, with DTC P0171 and/or P0174 set in history or current. If air flow to the air intake/air cleaner assembly is disturbed, these DTCs may be induced.

The condition may be caused by a gap between the upper radiator air baffle and the bumper beam combined with some beam holes. The gap and holes may cause an air flow disturbance to the air intake.

Remove the air cleaner assembly for access. Clean the bumper beam as necessary and install a sound deadener patch so that the holes are covered, so that no air can flow through these holes.

Evaluate the lean condition after the upper radiator air baffle gap has been repaired and the bumper beam holes have been covered. Note that any modifications that may have been made to the air intake/air cleaner assembly must be removed before attempting these repairs.

P/N …………………...  PART

05973400.................... retainer, radiator air baffle (2)

P20617........................ Kent Automotive sound deadener patch pads (2)

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