2001 Nissan Sentra Problems?

Question

I have replaced the fuel pump, spark plugs, pumped fuel (3/4 tank), fuel pressure regulator, and air filter, oil filter and oil, I have also checked the distributer, and the manifold and it's clear. I'm thinking it's the fuel filter.

MY CAR:

2001 NISSAN SENTRA SE 2.0L

Another thing is that the "Check Engine Light" doesn't come on when I turn the ignition switch to the "ON" position when everything else comes on.

I have an OBD2 Code Reader and it gives me the following messages:

P0450 - Evaporative Emission System Pressure Sensor/Switch

P0100 - Mass or Volume Air Flow Circuit

P0141 - O2 Heater Circuit (Bank1, Sensor 2)

P0446 - Evaporative Emission System Vent Control Circuit

The thing is that the car doesn't go past 2.5 RPM even when it's on neutral. The car bogs and shakes when I past it, and the car will only drive about 30 MPH.

Any ideas?

Answer 1

i would refer to a wiring schematic. all the listed components probably share the same voltage reference from the computer. one bad sensor or wire could set all the codes