The vapor pressure sensor is attached to the charcoal canister via 2 screw and a tube. there is also an electrical plug that goes to the computer.
other possible causes would be
The canister itself- either physical damage or fuel damage(causes by topping off your tank)
the air filter in the evap system
physical damage to the tubing or poor connections ( an evap smoke test will answer those questions)
a wiring problem ( an open or a short)
or the computer itself is bad.
Diagnosing these problems is difficult for the "at home mechanic" to do. this is a tricky spot that may be left to the pro's.
I am not a mechainic for a living but i worked on my truck for a P0450 Nissan code at it was very difficult isolating equipment to diagnose the situation.
This is not a Nissan specific code; http://www.obd-codes.com/p0442 It is probably your gas cap is loose.
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
i think the code p1400 means exhaust gas recirculation(EGR) system/ evaporative emission(EVAP)system- valve mulfunction i think the code p1400 means exhaust gas recirculation(EGR) system/ evaporative emission(EVAP)system- valve mulfunction i think the code p1400 means exhaust gas recirculation(EGR) system/ evaporative emission(EVAP)system- valve mulfunction
: 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, but does anyone suggest anything? : 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 : ~Poster
Nissan Dualis tyre pressure
273 g/km
o2 sensor
The skyline doesn't reach US emission standards.
The computor has detected a problem, it will have to be scanned to determine what the problem is.
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