P1299 Vacuum Leak Found (IAC Fully Seated)

NAME OF CODE
Vacuum Leak Found (IAC Fully Seated)

WHEN MONITORED
With the engine running.

SET CONDITION
The MAP sensor signal does not correlate to the TP sensor signal.

THEORY OF OPERATION
The powertrain control module (PCM) monitors the MAP signal as well as the TP sensor signal. The vacuum reading decreases as throttle opening increases proportionally. The PCM compares the two values to verify the relation between the two signals.

POSSIBLE CAUSES
- Vacuum leak
- Faulty MAP sensor
- Faulty TP sensor
- Powertrain control module failure
- Connector terminals
- Connector wires