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OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections.
The vapors which are displaced from the fuel tank by the incoming fuel are routed via the vapor vent line to the canister and are absorbed by activated carbon. These canisters are made of either steel or plastic. The size of this canister is tailored to accommodate expected evaporative emissions.
A second function of the PCV valve is to act as a flame arrester and to prevent positive pressure from the intake system from entering the crankcase. This can happen on turbocharged engines or when a backfire takes place, and the positive pressure could damage the crankcase seals and gaskets, or even cause a crankcase explosion. The PCV valve ...
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Thus, a MAP sensor will always read 100 kPa more than a boost sensor measuring the same conditions. A MAP sensor will never display a negative reading because it is measuring absolute pressure, where zero is the total absence of pressure. Vacuum is measured as a negative pressure relative to normal atmospheric pressure. Vacuum-Boost sensors can ...
1937–1941 Nissan 90 Bus; 1939–1941 Nissan Type 50; 1941 Nissan Type 30; 1941 Nissan Type 53; 1941–1952 Nissan 180 Truck (based on the 1937–1941 Chevrolet 133/158 trucks) 1941–1949 Nissan 190 Bus; 1949-1951 Nissan 290 Bus; 1952–1953 Nissan 380 Truck 1952-1953 Nissan 390 Bus; 1953–1955 Nissan 480 Truck 1955 Nissan 482 Truck; 1953 ...
It was developed and marketed for the United States and Canada, where Nissan had not previously been present in the full-size segment. [2] Until the introduction of the Nissan NV, Mexico was the only country in North America selling a full-size Nissan van, as the Nissan Urvan was sold there.
Evaporative emissions are the result of gasoline vapors escaping from the vehicle's fuel system. Since 1971, all U.S. vehicles have had fully sealed fuel systems that do not vent directly to the atmosphere; mandates for systems of this type appeared contemporaneously in other jurisdictions.