I DONT GET ALL THE POWER IN MY TRUCK I CHANGED MY MASS AIR FLOW SENSOR AND NOW THE COMPUTER IS SAYIN CAM AND CRANK SHAFT

One out of two problems. Mass air flow sensor or Throttle position sensor

Get the computer ran but im guessing the crank shaft position sensor most likely or possibly the cam position sensor.

Start with a code reader several items will turn on check engine light and kill the engine Crank shaft sensor, cam shaft sensor, mass air flow meter, exhaust gas re circulation , manifold pressure sensor.

Check mass air flow sensor

clean the mass air flow sensor in the air filter tunnel

I’m happy to assist further over the phone at https://www.6ya.com/expert/james_1cb31da1bc8c6102

There are 12 common sensors and 10 internal sensors. The most common that often fail (MAP), (TPS), (CAM), (IGN), (CRANK) MAP is your mass air flow which is located at the beginning of your air intake, TPS is the throttle body position sensor, the CAM is the cam shaft position sensor (transmission), IGN ignition position sensor and the CRANK sensor is located near the bottom driver side front

hello good day, reverse your air filter, make the bottom to top,, if is not work change the high tension wires

Changed the timing belt and knocked loose the wires or connections to the sensors on the mass airflow device.

Code PO1309 : Misfire Monitor Failure Description : When the misfire monitor is disabled,usually due to the input signal generated by the camshaft position sensor, by sensing the passage of teeth from the camshaft position wheel. Possible Causes : PCM(power train control module), Mass Air Flow Sensor, Engine Coolant Temperature Sensor, Crank Shaft Position Sensor, Camshaft Position Sensor.