P0339 fault code

[DM3003]

Hi,
Can anyone help me?
I have a C5 X7 1.6 HDi... I’ve replaced the timing belt, and everything was done according to the diagram—the holes align perfectly with the locking pins.
When I start it up, it idles very smoothly, but when I press the accelerator, the engine almost stalls.
I’m getting error code P0339 (crankshaft sensor)... I’ve replaced the sensor, but I’m still having the same problem—the car almost stalls when I hit the gas. I’m completely stumped... what’s wrong?
Best regards
Dag M

[mickthemaverick]

Have you checked the condition of the wiring to the sensor and its plug pins?

[DM3003]

Hi..Thanks for the reply... yes, I've replaced the connector.
But the same error code keeps appearing.

[RichardW]

Possibly you have damaged the pick up ring on the crank sprocket; or maybe the air gap is wrong - there's a locating pin, but it often breaks off.

[DM3003]

Hi Richard
The crank sprocket is new.

[RichardW]

Ah, where did it come from?

[DM3003]

Europarts

[RichardW]

Well at least it wasn't Amazon, but my guess is it's no good. Was it a branded one?

[DM3003]

Hi Richard
It was maxgear 54-1103

[DM3003]

I cleaned the magnetic ring that the sensor sits on today... after that, the car won't start... and it's the same error code, P0339

[RichardW]

Looks like you will have to replace- preferably OEM. What happened to the original one?

[DM3003]

I had to remove the old one to replace the crankshaft seal... I damaged the ring while trying to pull it of

[DM3003]

Started it up today... it idles fine... but stalls when I give it gas... same error code P0339.