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Robert, UK Qualified Car Technician
Category: Car
Satisfied Customers: 4716
Experience:  Fully qualified / self employed garage technician in the UK
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have a 09 citroen c4 1.6 vti petrol with 20k on clock engine

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have a 09 citroen c4 1.6 vti petrol with 20k on clock engine light on anti pollution failed
obd 2 codepo343 camshaft position sensor a bank 1 circuit high
is this a garage job engine starts and runs ok



Hopefully i can help..


That codes generally relates to either a wiring fault from the sensor itself,a problem at the mulitplug at the camshaft sensor or the rest of the wiring back to the ecu,that something that would need to be check carefully.or the camshaft sensor itself is at fault,that would gernally mean just replacing the sensor genuine fitment if possible clear the code and re-test the car and see if the fault returns or the engine timing is slightly out..Doesnt have to be a garage job if you can replace the sensor yourself as above that usually the most common faults with that code but maybe try the sensor first if prefered..I do hope this helps
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Customer: replied 4 years ago.

will try replacing sensor thank you

Hi..there..thanks for your reply..thats fine probably the best place to start..but dont forget to inspect that wiring too especially at the connector,pins too more so... Please dont forget to rate my assistance most appreciated..regards Robert