DTC P1297: No Change In Map From Start To Run: Description

Manifold Absolute Pressure (MAP) sensor operation is monitored with engine speed at 400-1500 RPM and throttle closed. DTC will set in Powertrain Control Module (PCM) when PCM senses too small a difference between barometric pressure with ignition on, and manifold vacuum with engine running for 8.8 seconds. Possible causes for DTC to set are: defective MAP sensor, defective or restricted vacuum ports, or defective connectors or wiring.