DTC P3190: Poor Engine Power; DTC P3191: Engine does not Start [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The ECM receives signals from the power management control ECU such as the requested engine torque, target engine speed and engine cranking status, and controls the engine output based on the target engine speed and requested torque.
| DTC No. |
DTC Detection Condition |
Trouble Area |
| P3190 |
When all of the following conditions are met (1 trip detection logic):
- Engine speed is 650 rpm or more (varies depending on the engine coolant temperature).
- Engine torque requested by the power management control ECU exceeds a certain level.
- The power management control ECU judges that the engine has started.
- The fuel tank is not empty.
- Communication between the power management control ECU and ECM is normal
- "The actual engine torque is less than 20% of the requested engine torque" for 6 seconds, or until the crankshaft turns 100 times (whichever takes longer, differs depending on the engine coolant temperature).
|
- Intake system
- Throttle with motor body assembly
- Fuel system
- Engine
- Mass air flow meter sub-assembly
- Out of fuel
- Engine coolant temperature sensor
- Crankshaft position sensor
- Camshaft position sensor
- EGR valve assembly
- ECM
|
| P3191 |
When all of the following conditions are met (1 trip detection logic):
- Engine speed is 650 rpm or more (varies depending on the engine coolant temperature).
- The fuel tank is not empty.
- Communication between the power management control ECU and ECM is normal.
- After the power management control ECU sends the engine start request signal, it does not detect engine start (generation of engine torque) for 6 seconds, or until the crankshaft turns 100 times (whichever takes longer, differs depending on the engine coolant temperature).
|
- Intake system
- Throttle with motor body assembly
- Fuel system
- Engine
- Mass air flow meter sub-assembly
- Out of fuel
- Engine coolant temperature sensor
- Crankshaft position sensor
- Camshaft position sensor
- EGR valve assembly
- ECM
|