Preliminary Inspection

It is recommended that the following components and/or systems be inspected to ensure proper operation. Deterioration or malfunction of following components and/or systems could contribute to DTC P1170 being set:

• Fuel Injectors
• Fuel Pressure Regulator
• Fuel Pump
• Fuel Filter
• Exhaust System
• Air Intake System
• PCV Valve
• Purge Solenoid & Hoses
• Ignition Coil
• CMP Sensor
• Engine Compression
• Mass Airflow Sensor
• ECT Sensor
• TP Sensor
• EGR System
• Vacuum Hoses

For testing and adjustment information on items listed, see the following articles:

• C - SPECIFICATIONS
• D - ADJUSTMENTS
• F - BASIC TESTING
• I - SYSTEM/COMPONENT TESTS
• M - VACUUM DIAGRAMS.