LW Diesel P02E1 Over Temperature Intake Air Flow

[Smiddler]

Hello does anyone know what this error refers to ? when I look at the temperatures in Forscan they seem to be about what I would expect (not that I am an expert) The error cant be reset not sure if its serious found it whilst dealing with trans issue

AAT Ambient Air Temperature 19 C
ACT Air Charge Temperature 36 C
ECT Engine Coolant Temperature 71 C
IAT Intake Air Temperature 42 C

Code: P02E1 - Intake Air Flow A Control Performance

Additional Fault Symptom:
- Over Temperature
Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

[marg99]

Try This guide:
A good starting point is always to check for technical service bulletins (TSB) for your vehicle. Your issue may be a known issue with a known fix put out by the manufacturer and can save you time and money during diagnosis. Next, locate the DIAFCS motor/control system on your vehicle. This motor/control is usually bolted to the intake manifold in the intake air stream. Once located, visually inspect the connector and wiring. Look for scraping, rubbing, bare wires, burn spots or melted plastic. Pull the connector apart and carefully inspect the terminals (the metal parts) inside the connector. See if they look burned or have a green tint indicating corrosion. Use electrical contact cleaner and a plastic bristle brush if cleaning of the terminals is needed. Let dry and apply electrical grease where the terminals contact. If a mechanical code was set, use intake cleaner and a clean rag to wipe out the carbon deposits behind the throttle plate of the motor control system. Spray the cleaner onto the rag and wipe out the deposits with the rag. NEVER spray these deposits into the engine, as they can cause poor running, misfires and with enough intake cleaner, catalytic converter damage and possibly engine damage. If you have a scan tool, clear the diagnostic trouble codes from memory, and see if P02E1 code returns. If it does not, then the connections were most likely your problem. If the P02E1 code does return, we will need to test the DIAFCS and its associated circuits. With the Key Off, disconnect the electrical connector at the DIAFCS motor/control. Connect a Digital Voltmeter black lead to the ground terminal at the DIAFCS motor/control wiring harness connector. Connect the red lead of the Digital Voltmeter to the motor terminal at the DIAFCS sensor wiring harness connector. Turn Key On Engine Off. Check manufacturer’s specifications; voltmeter should read 12 volts. If not, repair the power or ground wire, or replace the PCM. Check manufacturers specifications for complete test procedures on your specific vehicle if unsure. If the prior test passed and you continue to get a P02E1, this would most likely indicate a failed DIAFCS motor/control, although a failed PCM could not be ruled out until the DIAFCS motor/control had been replaced. If unsure, seek assistance from a trained automotive diagnostician. PCMs must be programmed, or calibrated to the vehicle to be installed correctly.

Read more at: https://www.obd-codes.com/p02e1
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[Smiddler]

Hi thanks for the reply That guide it doesn't make any reference to the specific over temperature , I have cleaned the intake throttle body it seems to be free to move and cleaned the MAF and temp sensors after the the throttle valve it doesn't appear to have any affect on the operation of the car but the error cant be removed if anyone knows what temperature the error refers to?