Crack position sensor where is at - 2005 Nissan Altima

Remove the power steering pump. Refer to Power Steering Pump Replacement . Disconnect the camshaft position (CMP) sensor electrical connector. Remove the CMP sensor bolt. Remove the CMP sensor. Inspect the sensor O-ring for wear, cracks, or leakage if the sensor is not being replaced.
It's under the power steering pump .
It

You mean crank position sensors? No, only one. There should also be a cam position sensor, though.

You replaced all those sensor,Your problem is mechanical, The timing may have slipped.If the timing belt is good and all on the mark,how the crank position sensor, The crank get its signal from the transmission flywheel,if the flywheel is cracked and lost its position then it does exactly what you describe . You either have a cracked flywheel or a jumped timing belt.The exhaust can be plugged also

Several things can cause this problem, cracked distributor cap, old ignition rotor. Or if you have coil packs, cracked coil pack, ignition control module, crank position sensor, cam position sensor. Coil pack parts and sensors can be checked by autozone, cap and rotor will have corrosion on the rotor, however a small crack in the distributor cap can be next to impossible to see, replacement is usually best option.

camshaft position sensor high input, camshaft position position sensor intermittent, ignition coil circuit. Check your circuits to these locations. also check for cracks and breaks.

It's possible that either your crank position sensor is cracked from the heat and won't allow the car to restart and/or your thermostat has failed in the closed or partially closed position. Also the Engine Coolant Temp sensor is likely cracked because it is plastic. It's a $10 part and easily replaceable. Replacement of the ECTS first, then thermostat, and then CPS in that order should have you running again.

The crank sensor is on the lower rear side of the block.

Probably needs a crankshaft position sensor. If the belt is cracking a piece of the belt might have damaged the "eye" in the sensor or may be blocking the "eye" ( the timing belt runs right over top of the sensor at the crankshaft). Or it could be one of many other things: bad ecu, bad ignition coils, camshaft position sensor, etc, etc.

2.0L 2.4L Removal The camshaft position sensor is mounted to the rear of the cylinder head.

Remove the negative battery cable. Disconnect the PCV hose and reposition Disconnect electrical connectors from the camshaft position sensor. Remove camshaft position sensor mounting screws. Remove sensor.Loosen screw attaching target magnet to rear of camshaft and remove magnet.
Instalation The target magnet has locating dowels that fit into machined locating holes in the end of the camshaft.
- Install target magnet in end of camshaft. Tighten mounting screw to 3 Nm (30 in. lbs.) torque. Over torqueing could cause cracks in magnet. If magnet cracks replace it.
- Install camshaft position sensor. Tighten sensor mounting screws to 12.9 Nm (115 in. lbs.) torque.
- Carefully attach electrical connector to camshaft position sensor. Installation at an angle may damage the sensor pins. - Connect the PCV Valve hose. - Connect the negative battery cable.
2.7L V6 Removal
The camshaft position sensor is mounted in the front of the head.

Disconnect electrical connector from sensor. Remove camshaft position sensor screw.
CAM Sensor Location 2.7L
Without pulling on the connector, pull the sensor out of the chain case cover.

Installation - Install sensor in the chain case cover and push sensor in until contact is made with the boss on the head. While holding the sensor in this position,install and tighten the retaining bolt to 12 Nm (105 in. lbs.) torque.
- Attach electrical connector to sensor.

Good luck and hope this helps

2.0L 2.4L it is on The BACK OF the Cylinder Head REMOVAL
The camshaft position sensor is mounted to the rear of the cylinder head.

1. Remove the negative battery cable.
2. Disconnect the PCV hose and reposition.
   1. Disconnect electrical connectors from the camshaft position sensor.
   2. Remove camshaft position sensor mounting screws. Remove sensor.
      1. Loosen screw attaching target magnet to rear of camshaft and remove magnet.
      INSTALLATION
      The target magnet has locating dowels that fit into machined locating holes in the end of the camshaft.
      
      
      1. Install target magnet in end of camshaft. Tighten mounting screw to 3 Nm (30 in. lbs.) torque. Over torqueing could cause cracks in magnet. If magnet cracks replace it.
      2. Install camshaft position sensor. Tighten sensor mounting screws to 12.9 Nm (115 in. lbs.) torque.
      3. Carefully attach electrical connector to camshaft position sensor. Installation at an angle may damage the sensor pins.
      4. Connect the PCV Valve hose.
      5. Connect the negative battery cable.

2.7L V6
REMOVAL
The camshaft position sensor is mounted in the front of the head.

1. Disconnect electrical connector from sensor.
2. Remove camshaft position sensor screw.

CAM Sensor Location 2.7L

1. Without pulling on the connector, pull the sensor out of the chain case cover.

INSTALLATION
The camshaft position sensor is mounted in the front of the head.

1. Install sensor in the chain case cover and push sensor in until contact is made with the boss on the head. While holding the sensor in this position,install and tighten the retaining bolt to 12 Nm (105 in. lbs.) torque.
2. Attach electrical connector to sensor.