The OBD code P04E2 indicates an issue with the crankcase pressure sensor circuit.
This affects the engine’s emission control system.
Symptoms include the Engine Light being ON.
The main causes are a faulty sensor, wiring harness issues, or a malfunctioning Engine Control Module.
It is a moderate issue that should be addressed promptly.
A possible fix is to inspect and repair any damaged components or wiring connections related to the crankcase pressure sensor circuit.
Repair Importance Level | 10.0 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the p04e2 OBD Code
The vehicle may experience issues related to the exhaust gas recirculation temperature sensor circuit.
- Symptoms: Engine Light ON.
- Possible lack of power during acceleration.
- Rough idle.
- Engine stalling at low speeds.
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Causes of the p04e2 OBD Code
Possible reasons for fault code P04E2 include issues with the exhaust gas recirculation sensor.
- P04E2 can be caused by a Faulty Crankcase Pressure Sensor.
- A Crankcase Pressure Sensor harness that is open or shorted.
- A Crankcase Pressure Sensor circuit with poor electrical connection.
- Or a Faulty Engine Control Module (ECM).
Fixing Error Code p04e2 Step By Step
Replace the exhaust gas recirculation temperature sensor B with a new one to address code P04E2.
- To fix OBDII code P04E2, first, review the possible causes related to the Exhaust Gas Recirculation (EGR) position sensor circuit.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- Test the EGR position sensor for proper operation and signal output.
- Replace the EGR position sensor if it fails the test.
- Clear the fault codes and perform a test drive to verify that the issue has been resolved.
Cost Of Fixing p04e2 Fault Code
The repair for fault code P04E2 typically involves replacing the intake air temperature sensor.
The cost to diagnose and fix OBD code P04E2 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the repair needed.
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Details of the p04e2 OBD Code
P04E2 code indicates an issue with the fuel volume regulator control circuit.
OBD code P04E2 means that the powertrain control module (PCM) has detected a problem with the fuel pressure sensor B circuit low.
This code is triggered when the PCM receives a signal from the fuel pressure sensor indicating that the fuel pressure is lower than expected.
The fuel pressure sensor is the component that triggers this code.
It is responsible for monitoring the fuel pressure in the fuel system and sending this information to the PCM.
The signal involved in this code is related to the fuel pressure sensor circuit, indicating a low voltage condition.
When diagnosing this code, technicians typically check the wiring and connectors associated with the fuel pressure sensor for any damage or corrosion.
They also test the sensor itself to ensure it is functioning properly.
If no issues are found with the sensor or its circuit, further diagnosis may be needed to determine the root cause of the low fuel pressure condition.
Mechanic’s Tech Notes
Diagnostic information for fault code P04E2 related to the EVAP system purge control valve performance.
To diagnose and fix OBDII code P04E2, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection can help identify and resolve issues related to code P04E2 efficiently.
FAQ
OBD code P04E2 indicates an issue with the Crankcase Pressure Sensor. Check sensor, wiring harness, connectors for faults. Inspect and repair as needed.
Common symptoms for OBD code P04E2 include Engine Light ON. Possible causes are faulty Crankcase Pressure Sensor or ECM. Fix: Inspect sensor, wiring, and connectors for damage.
Diagnose and fix OBD code P04E2 by checking the Crankcase Pressure Sensor, its wiring, and connectors for faults. Inspect for damage, corrosion, or poor connections.

Wrap Up
If your vehicle displays OBDII code P04E2, you may experience issues with the Exhaust Gas Recirculation (EGR) position sensor A circuit low.
This could be caused by a faulty EGR position sensor, damaged wiring, or poor electrical connections affecting the EGR system’s operation.
To address OBDII code P04E2, start by inspecting the EGR position sensor A and its wiring harness for any visible damage.
Test the sensor’s resistance and ensure proper voltage supply.
Check for loose or corroded connectors in the EGR system to restore