Low power (MIL works OK, no DTCs set)(PGM-FI System)

Diagnostic procedure 

• Test the fuel pressure - Refer to: Fuel Pressure Relieving () or Fuel Pressure Test () .
• Check the air cleaner element .
• Test the VCM Rocker Arm .

Also check for 

• Low compression
• Incorrect camshaft timing
• Incorrect engine oil level
• Exhaust restriction
• Fuel contamination