The name Minneapolis is attributed to Charles Hoag, the city's first schoolteacher, who combined mni, a Dakota Sioux word for water, and polis, the Greek word for city.
EGR valve on top of the inlet manifold of a Saab H engine in a 1987 Saab 90. In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders.
- Engine Light ON (or Service Engine Soon Warning Light) - Possible engine hesitation. P0403 Description. Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Îodule (ECÎ¼) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Îodulator.