P340 code

Asked by Feb 21, 2017 at 08:30 PM about the 2006 Audi A4 2.0T quattro Sedan AWD

Question type: General

I was driving on the highway and my oil pressure
light came on so I stopped and turn the car off.  
Then start it driving for like anot her two miles then
it came back on and so turn it off I was low on gas
so I push it to a gas station but after getting the
gas it wouldn't start.  Since the check engine light
is on and got a p340 code I changed the sensor
but the light came back on now it starts but when I
put it in drive it shut off.  And sometime sputter
when it idles.

10 Answers

75,535

P0340 AUDI - Camshaft Position Sensor...Possible causes; Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection, Faulty starter motor, Starting system circuit, Dead (Weak) battery...Sometimes and in some models, low battery voltage or a weak starter can can trigger a Camshaft Position Sensor code.When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.

Even if I change the sensor. The battery did die from trying start so everytime i of jump start it. How can I check the harness? For shortage or open circuit?

75,535

I would make sure the battery is charged all the way up and check that it is in good shape with a load test, then clear the code and see if it comes back. To do any testing you would need a digital multi meter.

So I had bought a new sensor and also erase the code but It came back.

75,535

You didn't do anything with the battery did you...

Do you.think anything in the engine got messed up? After oil pressure light came on?

75,535

No, The oil light cam on because of another problem, the camshaft sensor. It was just another way of warning you of a problem since the camshaft sensor not working along with the low battery. Just replace the camshaft sensor and make sure you have a good battery. Clear the code and see what happens. If a warning light comes back on then read the codes to see what it is.

No i didnt do anything with the battery.

3,965

check the wiring

So I changed the camshaft sensor charge the battery and it still doing the same thing, no power idling not so good. As soon as i try to move the stall out.

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