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2003 Ford Taurus 3.0L DOHC Engine Codes P1132, P1152, P0171, P0174 - Diagnosis and Fix

Model: 2003 Ford Taurus 3.0 DOHC Fault Code: P0171 Posted: 2012-04-21 15:09

The check engine light has activated on my 2003 Ford Taurus 3.0L DOHC engine, and the OBD-II scanner reveals four diagnostic trouble codes: P1132, P1152, P0171, and P0174. These codes indicate issues with oxygen sensor monitoring and fuel trim imbalances. While my Snap-On 'Brick' scanner only supports up to 2000 model year vehicles, I'm seeking reliable guidance on interpreting these specific codes and identifying the root cause for proper repair.

Related fault codes
P0171P1132P1152
Comments (1)
Anonymous 2012-04-22 08:52

I scanned the codes using the generic mode of my scanner. Based on common patterns, a vacuum leak is likely the primary culprit behind these codes, especially P0171 and P0174, which suggest lean air-fuel mixtures in the intake system.