P0038 Citroen Eco Diagnostic Trouble Code
P0038 Citroen Eco code definition:
P0038 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Citroen Eco.
P0038 Citroen Eco is triggered when the bank 1 camshaft position sensor doesn't match the signal from the crankshaft position sensor. As you drive and when specific conditions are slowly met, the vapors will gradually purge from the charcoal canister and will get burned within your engine.
Symptoms
Symptoms of a P0038 Citroen Eco diagnostic trouble code may include:
- Poor acceleration
- Cherry red hot catalytic converter
- Possible spark knock (detonation / pre-ignition)
- Hesitation upon acceleration
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Possible Causes :
- Some aftermarket accessories and performance modifications
- A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
- A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
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Common Misdiagnoses
- IC Circuit High Voltage Problem
- Control Module Throttle Actuator Position Performance Problem
- Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
- Cruise Vehicle Speed/Set Speed Difference Too High Problem
- PCM Stack Overrun Problem
Repair Processes :
Look at the plug wires to make sure they are not burnt or laying on the exhaust.
With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.
You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.
Process Tips
Diagnostic trouble code P0038 Citroen Eco is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P0038 Citroen Eco.
Fortunately, P0038 Citroen Eco is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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