Replacing Camshaft Position Sensor Guide audi a4

You didn't state the year but could be a couple of issues. First, could have have a cam jump 1 tooth and it is now out of time. Second, you could have a cam or crank sensor failing and they are not syncing. Third, you could have a pcm/ecm failure or issue. Did you get a reference code?

p 0305 is misfire on no 5 cylinder code p1340 refers to camshaft (CMP) sensor 1 bank/ crankshaft position (CKP) sensor ---out of sequence === causes ---valve timing--CMP/CKP sensor installation---CKP sensor rotor
misfires are more injector problems that plugs
take it to an authorized service center for the position senor and valve timing problems

Check your fuel injector.

Bank one is passenger side cylinder bank.
Cam sensor should be at front of cylinder head.

You would need to find a test for the cam sensors, could also be the rpm sensor.

With these it can and usually will, effect timing and acceleration. No you do not need to replace all 4. Replace the bad one, clear the code and go for a good long test drive.

A diesel uses a different procedure. You'll need a tool to hold the camshaft pulley parallel to the top of the cylinder head. The timing mark to set TDC for piston #1 is located on top of bell housing. The pointer must be aligned on the diamond cut on the flywheel. A VW/Audi setting bar tool #2065A is needed to lock the camshaft in position. Lock the injection pumpin position using the special lock pin (VW/Audi special tool no. 2064). Caution: If the drive belt is broken or has jumped time, do not attempt to lock the sprocket at this time!!! You will also need VW/Audi special tool no. VW210 to measure belt tension between camshaft sproket and injection pump sprocket. So good luck.

Common low RPM problem occurs identically many other manufacturers ***/American/German vehicles due to camshaft position sensor:

Easily and cheaply fixed by replacing cam position sensors.

The "cam crank" sensor is the "reader" for position and speed of the camshaft. This sensor send informations to Engine Control Unit about camshaft position and speed. If the sensor is faulty engine stops!

its not hard to fix.but you going to have to move some things to get to it. you will need a haynes repair manual.it will show you photos and instructions how to replace it.