2004 Renault Megane II 1.5 DCI: Error DF112 Troubleshooting, Shaft Sensor, Timing & Solutions

Hello
Toy car from 2004 1.5dci
If the "shaft" sensor is connected, the car does not start - no errors
If we disconnect it, it fires in the 2nd time error df112 break
If I connect it on a fired car, the error changes to df112 signal incompatibility
2 sensors replaced and the same
timing set on locks (shaft and pin shaft, pump wheel set according to the instructions with a sign on the bolt)
The marks on the belt also match, i.e. between the roller and the pump.
The installation to the computer has been checked

there are no miracles - a wedge on the shaft?

SanchosX wrote:

pump wheel positioned according to the instructions with a mark on the bolt

There is no mark on the bolt, the marks are on the belt and pulleys of the shaft and pump. 27 teeth of the belt between the pump pulley and the timing pulley.

Buddy, damdam, there is no wedge on the shaft - that's why there is a shaft lock
Buddy milejow, autodata or tolerance shows the pump wheel on the bolt, but I will check these 27 teeth and let me know (although from what I remember, the signs on the belt were matched with the marks on the wheels

Check the shaft wheel key. They liked to cut

27 cloves are the same
But there is no sensor on the roller wheel