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Air Fuel Ratio (A/F) sensor ECM P2238 Case 1: Condition (a) or (b) continues for 5.0 seconds or a. AF+ voltage 0.5 V or less b. (AF+) - (AF-) = 0.1 V or less Case 2: A/F sensor admittance: Less than 0.022 1/ohms (2 Open or short in A/F sensor A/F sensor (for bank 1, 2 A/F sensor heater (for bank 1, A/F relay A/F sensor heater and relay ECM P2239 AF+ voltage more than 4.5 V for 5.0 seconds or more (2 Open or short in A/F sensor A/F sensor (for bank 1, 2 A/F sensor heater (for bank 1, A/F relay A/F sensor heater and relay ECM P2252 AF- voltage 0.5 V or less for 5.0 seconds or more (2 trip Open or short in A/F sensor A/F sensor (for bank 1, 2 A/F sensor heater (for bank 1, A/F relay A/F sensor heater and relay ECM P2253 AF- voltage more than 4.5 V for 5.0 seconds or more (2 Open or short in A/F sensor A/F sensor (for bank 1, 2 A/F sensor heater (for bank 1, A/F relay
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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