What are the possible causes of Fiat DTC P1327?
NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.
- Low engine oil level
- Contaminated engine oil
- Incorrect oil filter
- Insufficient oil pressure due to mechanical failure in the lubrication system
- Faulty Variable Valve Actuator (VVA) assembly
How to repair Fiat DTC P1327?
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What are the possible symptoms of Fiat code P1327?
- Check engine light on (or engine maintenance warning light soon)
What does Fiat code P1327 mean?
Multi-Air is an electronically controlled variable intake valve timing and lift system. Unlike conventional intake valve timing and lift systems that control all intake valves of the cylinders simultaneously and in the same proportion; Multi-Air, through the use of an electronically controlled hydraulic link between the camshaft and the intake valve, allows each intake valve to be controlled independently. Valve lift and timing can be adjusted continuously.
The Multi-Air valve system features a mechanical camshaft lobe acting on a hydraulic pump located between the intake camshaft lobe and the intake valve. The pump supplies pressurized oil to a two-way electro-hydraulic valve called the Variable Valve Actuator (VVA) solenoid. The VVA solenoid is electronically controlled during the specific intake cam lobe event by the Powertrain Control Module (PCM). During the event, the VVA solenoid is commanded to maintain oil pressure or to purge oil. The VVA solenoid is a normally open solenoid. The PCM provides 12 volts to close the solenoid. The position of the VVA solenoid determines the intake valve timing and lift. This change in valve action is similar to creating a change in the camshaft lobe profile affecting the lift and duration of the valve opening.
The Diagnostic Trouble Code (DTC) will be set when the PCM measures the time required to activate the VVA solenoid. When the PCM determines that the VVA solenoid activation time cannot be measured, a fault is set.