What can cause a P0138 code?
What Is the Cause of Code P0138?
- Faulty O2 Sensor.
- Short to battery voltage in O2 sensor signal circuit.
- Corroded wiring.
- Fuel pressure too high.
- Engine coolant temperature sensor.
What is a performance control module?
Diagnostic trouble code (DTC) P0607 stands for “Control Module Performance.” It is logged once the PCM perceives that the control module is experiencing internal issues. Your vehicle’s PCM runs a routine self-diagnosis to ensure that it is operating properly.
How many volts should my O2 sensor read?
0.45 volts
When the air/fuel mixture is balanced or at the equilibrium point of about 14.7 to 1, the sensor will read around 0.45 volts. When the computer receives a rich signal (high voltage) from the O2 sensor, it leans the fuel mixture to reduce the sensor’s reading.
What causes the p0138 code on an engine?
What causes the P0138 code? 1 The engine control module (ECM) sees the voltage of the O2 sensor for bank 1 sensor 2 above 1.2 volts… 2 The ECM detects the voltage high problem and turns on the Check Engine Light. 3 The ECM uses other O2 sensors to try and control the fuel injection with their values.
What are the p0607 and p0138 codes on a RAV4?
I only replaced the heated oxygen sensor (Bank 1 sensor 2) on my 2012 rav4 4cyl and I can confirm that replacing just that o2 sensor got rid of both codes (p0138 and p0607), at least for me. :smile If anything changes I will update. Click to expand… Thanks for posting that, should be useful to others down the road.
What to do if your Toyota has a p0607 code?
Check the Engine Control Module (ECM) fuse, if the fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replace the ECM. The cost to diagnose the P0607 TOYOTA code is 1.0 hour of labor.
When does the O2 sensor turn on the Check Engine light?
The engine control module (ECM) sees the voltage of the O2 sensor for bank 1 sensor 2 above 1.2 volts when the ECM has commanded the fuel to a targeted lean condition on that bank of the engine. The ECM detects the voltage high problem and turns on the Check Engine Light.