Exhaust Gas Recirculaton => its a circuit that bleeds small amounts of exhaust gas from the exhaust ports/manifold and directs it back into the air intake stream. The purpose of doing so is to lower emmissions (NOx particularly) at low & part throttle conditions. The EGR circuit is closed a high load and WOT conditions.
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Jeff Chambers
1990 Mustang GT 10.032 Seconds / 137.5 MPH
14-time Street Warrior World Record Setter
CRT Performance
2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH
2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2
"There's nothing boring about a small block automatic shifting gears at 9400 rpm!"
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