I took my car (2010 Nissan maxima s)to a mechanic to replace my camshaft sensor but car is still doing what it was before he said I only have one but everywhere else is saying I have 4 and I’m pretty sure the one he replaced was a good one, Could it be something else I’m going to a different shop to get the codes again ( this time ima write them down) any tips?

 

yes your car has 4. the sensor on an 09+ failing is extremely rare. you need to do a proper diagnosis on the fault.