Nissan Repair: 2002 Infiniti QX4 Error codes, 2002 infiniti qx4, crankshaft position sensor

Question
My Infinitti QX4 was diagonises and the below error codes came up, what does this means and what can I do to bring the baby back to shape?

Code 001 - P1336 CKP Sensor (COG)
Code 002 - P0031 H02S1 HTR (B1)
Code 003 - P0051 H02S1 HTR (B2)
Code 004 - P0037 H02S2 HTR (B1)
Code 005 - P0057 H02S2 HTR (B2)
Code 006 - P0102 MAF SEN/ CIRCUIT
Code 007 - P1102 MAF SEN/ CIRCUIT

Launch X-431 Tool was used.

Answer
Bex,

You need a new crankshaft position sensor.

You need all new oxygen sensors.

You need a new mass airflow sensor.

I would replace the air filter too when you replace the mass airflow sensor.

rockauto.com, autopartswarehouse or courtesyparts.com are all good sources.