Problem Reports
Toyota Supra
Report: Improperly Adjusted Valves May Cause Emissions Failure/Rough Idle
Toyota Supra Problem
7 Reports
Model Years Affected: 1992, 1993, 1994, 1995, 1996, 1997, 1998
Verified
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.
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