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Greg, import technician
Category: Mazda
Satisfied Customers: 7115
Experience:  17 years shop owner import
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2003 mazda 6: car is shutting..scanned..code came..camshaft sensor

Resolved Question:

hi, i have a 2003 mazda 6 2.3.The problem i am having is that the car is shutting off while driving and it is cold starting. I got it scanned and the PO340 code came up. I changed the camshaft sensor but the problem is still there. what else can i do to stop this problem?
Submitted: 6 years ago.
Category: Mazda
Expert:  Greg replied 6 years ago.
Hi welcome to will answer your question the best I can,

Getting a O0340 code does not mean that you have a Camshaft sensor failure, but a possible sensor failure , the code just puts you in the right direction as to where the problem is

P0340 possible causes
  1. PCM may have failed
  2. Cam shaft shaft position sensor may have failed
  3. wire or connector in the circuit could be grounded/shorted/broken
  4. Crank shaft position sensor may have failed
  5. an open circuit
Check all the wiring and connectors in the cam and crank shaft circuit.

A scann tool would make it easier to locate the problem and a scope to test if the two sensor are working correctly .

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Regards Greg
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