DTC P2227, DTC P2228 Or DTC P2229: Condition

DTC P2227 is set when Engine Control Module (ECM) detects barometric pressure calculated using Manifold Absolute Pressure (MAP) sensor does not match barometric pressure sensor output voltage during engine deceleration.

DTC P2228 is set when Engine Control Module (ECM) detects that barometric pressure sensor is less than specification.

DTC P2229 is set when Engine Control Module (ECM) detects that barometric pressure sensor is more than specification. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles. Possible causes are:

• ECM malfunction.
• Barometric pressure sensor (in ECM) malfunction.
• MAP sensor malfunction.