can any one tell me if the s14 maf work on a s13.

 

with a ecu retune or afc it will. its a lot bigger than the s13 maf and you will have idle and drivability issues.

 

Very true researching for the 300zx maf it is literally hotwired with different resistors, that carry a different Hz ratio than what the stock 240sx ecu reads. You will need an APEXI SAFC or a JWT ecu reprogram.
I purchased the APEXI it is cheaper and I can change my throttle responce per modification.

 

Im using a SOHC maf on my 95 because the wiring got hosed on my stock plug. i'm guessing it'll run rich because of it. on mine i mean.