I had a cel so i pulled the codes, and i got one for the evap system and one for the knock sensor, i went about testing the evap system as per the factory service manual but when i checked the voltage to the pressure sensor from the ecu wire harness i got a very erratice reading, was suppoused to be ~ 3V.

I suppose i have to replace the pressure sensor in the evap system, so my question is, has anyone here done this themselves, and if so how hard is it? any tips or directions would be apprecieated.

Thanx much

p.s. can anyone help me find this part? i drive a 98 maxima SE