If your pathfinder happens to have a key code it will be in the glove box. But if it is a 1997 or older model it might not have it. Call dealer and see if they will give you a key code with your vin# but it will cost you if they have it for that year then you give it to a locksmith and he should charge you less.
Trouble code P0733 means:Gear 3 incorrect ratio
what that mean distributor signal interrupt
In a 1992 Nissan Pathfinder, the key code can typically be found on a label inside the vehicle. Check the driver's side door jamb or the glove compartment for a sticker that might have the key code printed on it. If the code is not there, you may need to contact a Nissan dealership with your vehicle's VIN for assistance in retrieving the key code.
code 34 = knock sensor/circuit
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Trouble code P1337 means: CKP Sensor (Ref)
Trouble code P0745 means:Pressure control solenoid malfunction
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
To reset the radio code on a 1997 Nissan Pulsar, you typically need to enter a specific code provided by the manufacturer or your dealership. If you don’t have the code, check your owner’s manual or contact a Nissan dealer for assistance. Once you have the code, turn on the radio, and use the preset buttons to enter the code. If entered correctly, the radio should unlock and resume normal operation.
Trouble code P0330 means:Knock sensor 2 circuit malfunction
Trouble code P0100 means:Mass or volume air flow circuit malfunction
Trouble code P0335 means:Crankshaft position sensor A circuit malfunction