P1297

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 13:

Test 14:

SYMPTOM
P1297-NO CHANGE IN MAP FROM START TO RUN

WHEN MONITORED
With engine RPM ± 64 of target idle and the throttle blade at closed throttle.

SET CONDITION
Too small of a difference is seen between barometric pressure with ignition ON (engine running) and manifold vacuum for 8.80 seconds.

POSSIBLE CAUSES
- Intermittent Condition
- 5 Volt Supply Circuit Shorted To Ground
- 5 Volt Supply Circuit Open
- MAP Sensor Internal Failure
- MAP Sensor Signal Circuit Shorted To Ground
- MAP Sensor Signal Circuit Shorted To Sensor Ground Circuit
- MAP 5 Volt Supply Circuit Open
- MAP Sensor Vacuum Port
- MAP Sensor
- PCM 5 Volt Supply Circuit
- PCM MAP Sensor Signal