Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC P0171, P0174 Diagnostic Procedure Chart (Step 1-5)

Courtesy of MAZDA MOTORS CORP.

Fig 2: DTC P0171, P0174 Diagnostic Procedure Chart (Step 6-12)

Courtesy of MAZDA MOTORS CORP.

Fig 3: DTC P0171, P0174 Diagnostic Procedure Chart (Step 13-20)

Courtesy of MAZDA MOTORS CORP.