P0519

Test 1 - 6:

SYMPTOM
P0519-IDLE SPEED PERFORMANCE

TEST NOTE
This symptom is diagnosed using the test P0506-IDLE SPEED LOW PERFORMANCE.

WHEN MONITORED
With the engine idling and the transmission in drive, if automatic. There must not be a MAP sensor trouble code or a Throttle Position Sensor trouble code.

SET CONDITION
The engine idle is not within 200 rpm above or 100 rpm below the target idle for 50 seconds. Two trip fault.

POSSIBLE CAUSES
- Good trip equal to zero
- PCV system
- IAC motor passages
- Vacuum leaks
- Air induction system
- Throttle body and throttle linkage