Air Fuel Sensor VS Oxygen Sensor Quick Test Tips - Subaru P0171 P2096 P0030

Описание к видео Air Fuel Sensor VS Oxygen Sensor Quick Test Tips - Subaru P0171 P2096 P0030

Customer states check engine light in on 2015 Subaru Forester 2.5L. Code scan reveals fuel system control issue problem and the codes contradict each other. Where to start? Flat rate diag tech tips.

Here's a quick and dirty scan tool test method to prove a faulty A/F Air Fuel Ratio Sensor using generic OBD2 lambda data.

P0171 Bank 1 Fuel system lean

P2096 Post Catalyst fuel system rich

P0030 Oxygen Sensor heater bank 1 sensor 1

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