Quote:
Originally posted by merlot566jka@Nov 15 2005, 11:11 AM
it does have an egr...its built into the header and head. its not external...fyi
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Nope it don't......This is from GM
"To help meet emission standards, Ecotec's engine management system computer precisely controls the ignition and fuel injection based on feedback from the two oxygen sensors and handles on-board diagnostics.The exhaust outlet architecture, along with the control system, in most cases enables the Ecotec to meet or exceed the current emission standards, without the use of Exhaust Gas Recirculation (EGR) or Air Injection (AIR). The rear facing exhaust results in a short distance to the catalytic converter for quick catalyst light off on cold starts. Other features like minimum gap platinum-tipped spark plugs and a 3-millimeter top ring land piston design also help to reduce the hydrocarbon (HC) emissions."