Codes P0400, P0402, P1400, P1401, P1408 & P1409: Exhaust Gas RECIRCULATION System Malfunction

WARNING: This page is about a different car, the 1995 Mazda B4000, 1995 Mazda B3000, and 1995 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Trouble Codes No. P0400, P0402, P1400, P1401, P1408 & P1409 Exhaust Gas Recirculation System Malfunction (1 OF 2)

Fig 2: Trouble Codes No. P0400, P0402, P1400, P1401, P1408 & P1409 Exhaust Gas Recirculation System Malfunction (2 Of 2)

Fig 3: Trouble Codes No. P0400, P0402, P1400, P1401, P1408 & P1409 Differential PFE (DPFE) Sensor Circuit Diagram

Fig 4: Trouble Codes No. P0400, P0402, P1400, P1401, P1408 & P1409 EVR Solenoid Circuit Diagram