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Home >> Cadillac >> 1992 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Pcm Code Charts >> Pcm Code E042, Left Oxygen (O2) Sensor Lean Signal >> Test Conditions

Test Conditions

PCM Codes E014, E015, E016, E021, E022, E026, E027, E031, E032 and E034 not set. Throttle switch open, throttle angle 6-30 degrees, coolant temperature greater than or equal to 136°F (58°C), O2 sensor ready ("closed loop"), RPM greater than or equal to 800 and canister purge occurred at full duty cycle for 10 minutes since engine was running with coolant 176°F (80°C) and throttle angle 10 degrees or greater.