Conditions for Running the DTC

DTCs P0097, P0098, P0099, P0117, P0118, P0128, P0192, P0193, P0627, P0628, P0692 are not set.

P0191 Low Rationality Test

• The engine speed is greater than 25 RPM for greater than 0.5 second.
• The engine run time is greater than 30 seconds.
• DTC P0191 runs the low rationality test during engine start only.

P0191 High Rationality Test

• The engine speed is greater than 25 RPM for greater than 30 seconds.
• The engine block heater is not active.
• The engine coolant temperature (ECT), at shut down, is warmer than 72°C (161.6°F).
• The ECT, at start-up, is colder than 54.8°C (130.6°F).
• At start-up, if the ECT is warmer than the intake air temperature (IAT), the difference must be colder than 35°C (95°F).
• At start-up, if the IAT is warmer than the ECT, the difference must be colder than 10°C (50°F).
• The engine OFF time during soak is greater than 4 hours 27 minutes.
• DTC P0191 runs the high rationality test during engine start only.

P0192 and P0193

• The ignition is ON or the engine is running.
• The DTCs run continuously within the enabling conditions.