» Improperly Adjusted Valves May Cause Emissions Failure/Rough Idle
Report: Improperly Adjusted Valves May Cause Emissions Failure/Rough Idle
Toyota RAV4 Problem
Model Years Affected: 1996, 1997
A rough idle and even an emissions inspection failure for high HC and CO can be caused by improperly adjusted valves. Also, exhaust valves may become to tight which can lead to valve failures. Our technicians tell us that regular valve adjustment inspections are a must.
...g or decelerating only when I let off the gas to maintain speed. I received a troubleshooting P0505 for Idle Air Control Valve Control circuit, would this cause the described problem?
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