Check engine light comes on even though i replaced the faulty camshaft senors

did you check your oil level the 4 cyl eco has known problem with oil consumption--- you went into limp mode /shut down mode low or no oil pressure will shut down vehicle --but you may have jumped a tooth on timing chain or blown up engine

are you sure it was the speed sensor.... speed sensor fail will also affect the abs.... now cam or crank sensor will put engine in limp mode.

That code dsoesn't 100% mean the sensor is defective, other factors can set it. See list below.
Possible causes- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
P0601 CHEVROLET - Power Control Module Internal Fault

Cause: Faulty PCM. (Powertrain control module)

If it keep reading camshaft need replacing,what does the mechanic needs to look for to repair the promblem.

If all power is lost in the car, it could indicate a bad battery connection, bad wiring, or loose main wire harness, etc.

If a warning light comes on - it may be going in to Safe Mode.

Safe mode is the set of parameters that the car will use if it believes there
is a fault with the engine that could cause irrepairable or long term damage.

Generally it is an excess in expected boost pressure entering the engine.
This excess boost from the turbo tends to happen for 4 reasons.

The boost pressure sensor (MAP sensor) is faulty.
The wastegate is seized shut or slightly open.
The wastegate actuator is faulty.
The air line to the wastegate actuator is damaged or off.

Obviously, if the sensor is faulty, it will tell the ECU lies about the boost pressure.
If the wastegate assembly fails in any way it will fail to open to bypass the turbo.
The turbo will continue to spin up, increasing the boost pressure, causing the fault.

Initially I would suggest disconnecting the battery for 5 minutes (make sure you know your
radio code before doing this), this will turn safe mode off and your car should run normally
again. Drive home with a bit of care, you may find the car might never do it again. If it does
go into safe mode again, you know you have a real problem and not just a glitch.

Best to contact your dealer and have it checked out.

. Next time you can pour or spray water on the crank sensor and see if it will start. Replace it.

Good place to start if no other codes coming up. Good luck.

Have the PCM scanned, you are about due for a timing belt replacement. If it shows camshaft or crankshaft corralation error them you need to replace it very soon.

there is another fuse at the back of the radio. if that fuse is ok check if there is power comeing to the radio if there is u will need a new radio

Dont have a clue about the hazards but the connections on the starter could be bad