Engine - Spark Knock/Ping Diagnostic's

SOURCE:
Mitsubishi Tech-Talk Article, November 2004

TITLE:
Engine Pinging

APPLIES TO:
All Models

SERVICE TIP:
When diagnosing an engine pinging condition, always check for carbon deposits, which may have occurred due to fuel grade or quality and/or the customer's driving style. If necessary, clean combustion deposits from the pistons and combustion chamber. Recommend to customers to always use the correct grade of fuel for their model vehicle.