What's New in this article

The following is a list of changes to this article for 2009:

• Modified computer controlled shutdown feature.
• New 2.5L engine.
• New 190 pin powertrain control module (PCM).
• New deceleration fuel shut-off (DFSO) strategy.
• New dual speed mechanical return less fuel system.
• New electronic throttle body (ETB) with non contacting throttle position (TP) sensor.
• New enhanced thermostat monitor.
• New Hall effect camshaft position (CMP) sensor changed from variable reluctance type.
• New misfire monitor for applicable vehicles.
• New permanent P-code DTCs and clearing conditions.
• New universal heated oxygen sensor (HO2S).
• New variable camshaft timing (VCT) system.
• Power sustain relay (PSR) deleted.