Camshaft Position Sensor A Circuit Intermittent (Bank 2)
What it means
The engine computer has seen the signal from camshaft position sensor A on bank 2 drop out briefly and then return. This is usually caused by an unstable connection in the connector or wiring, or a sensor affected by heat.
Symptoms4
- Check engine light that comes and goes.
- Momentary jerk or stumble while driving.
- Rare sudden stalling.
- Intermittent loss of power.
Possible causes6
- Loose connector or a terminal with poor grip.
- Cracked wire that opens with vibration or heat on the bank 2 side.
- Sensor that fails when hot and then recovers.
- Oil or moisture inside the connector.
- Metal debris on the sensor tip.
- Weak ground.
How to diagnose5
- Review the freeze frame data to see engine temperature and speed at the time of the fault.
- Watch the signal while gently moving the wiring and connector with the engine running.
- Inspect the connector and test terminal grip for looseness or oil.
- Drive to full operating temperature to see whether the fault is heat-related.
- Swap the two bank sensors if identical; if the fault moves to P0344, the sensor is faulty.
How to fix5
- Clean the connector and repair loose terminals or replace the connector.
- Repair cracked wiring and secure the harness properly.
- Clean the sensor tip and fix any oil leak reaching it.
- Replace the sensor if it is proven to fail when hot.
- Clear the codes and road test under the same conditions that set the code.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The fix is often simple in the connector or wiring, but tracking intermittent faults can lengthen diagnosis, and the cost rises when the sensor is replaced.
Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026
Frequently asked questions
Testing found nothing, so why does the code return?
Because the fault happens briefly under certain conditions such as heat or bumps, so those conditions must be recreated during testing or the signal watched while driving.
Should I replace both bank sensors?
No need. This code concerns the bank 2 sensor only; replace the other one only if it sets its own code.
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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