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Discussion Starter #1
Help,

Sitting in my Alfa 147 1.6 Y Reg car and the engine stops dead.

I plugged in my ODB2 reader and get the error
"P0340 Camshaft Position Sensor Circuit Malfunction"

Prior to this the car was running fine.
any ideas?

Thanks
Sp
 

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It sits behind the exhaust camshaft sprocket. Changing it is quite an exercise.

Have you had the cambelt changed recently?

The plug for it is a blue 3-wire connector, clipped to the intake manifold.

I'm surprised its failure killed the engine though... I had a GTV with a jiggered one, and it ran fine.

Cheers,

Iain
 

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This will cut the engine if it fails because the engine wont know when to fire or inject fuel correctly so for safety it kills it, can you start the engine now? Did you get the engine warning light when it cut? And will the fault clear?


Rust on the tracking wheel flange often creates this problem as it clogs up the sensor and gives an unbroken signal.


So if you go ahead and change the sensor then I'd recommend you do the belts, tensioners and variator whilst the engines apart, you shouldn't reuse the current belt anyway.
 

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My 'jiggered' on was temperature sensitive. It worked fine when the engine was cold, but failed when it warmed up a bit. I proved this with an oscilloscope and a hot-air paint stripper ;)
 

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Discussion Starter #7
cheers chaps. Cambelt got changed about
40k ago. Car has done 115k so it's prob not worth getting the
Work done. Think I'll still get another alfa, because I'm a sucker
For punishment
 
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