Diagnosis & Repair
- If the vehicle runs out of fuel, the air-fuel ratio is LEAN and DTC P0134 will be recorded. The MIL then comes on.
- Read freeze frame data using the hand-held tester or the OBD II scan tool because freeze frame records the engine conditions when the malfunction is detected, when trouble shooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc. at the time of the malfunction.
For wiring diagram, see DTC P0031, DTC P0032, DTC P0037 & DTC P0038 . For diagnosis and repair, see Fig 1-Fig 3 .
To check the relevant DTC chart, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . To identify circuits referenced in testing, see ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. To perform trouble shooting for misfire, see DTC P0300: RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED, DTC P0301: CYLINDER NO. 1 MISFIRE DETECTED, DTC P0302: CYLINDER NO. 2 MISFIRE DETECTED, DTC P0303: CYLINDER NO. 3 MISFIRE DETECTED & DTC P0304: CYLINDER NO. 4 MISFIRE DETECTED . For testing of systems and components, see BASIC DIAGNOSTIC PROCEDURES - 4-CYL article or SYSTEM & COMPONENT TESTING - 4-CYLINDER article. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article. To perform confirmation driving pattern, see DTC P0130: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK NO. 1 SENSOR NO. 1) . To check ECM inputs and outputs, see PIN VOLTAGE CHARTS article. For ECM location, see ENGINE CONTROL MODULE LOCATION under SELF-DIAGNOSTIC SYSTEM. To check for intermittent problems, see INTERMITTENT PROBLEM CHECK under SELF-DIAGNOSTIC SYSTEM.