Hey guys, my service engine light just came on so i checked the codes, and got these 3:

1. Front Left Heated 02 sensor
2. EVAP control system pressure sensor
3. Crankshaft position sensor

Now i know a little about the mechanics of cars, but not much.. what are these and how much roughly do they cost to replace?? are they really important?

Thanks in advance

 

The CPS will probably be the showstopper. When mine was dead it would have some rought starts every now and again

 

is it a common thing to have those replaced on maximas? i think i had mine replced less than a year ago...

 

I've done one in 10 years, 228k.