rshiver
Posts: 381
Joined: 8/4/2007
Status: offline
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My understanding of the the EGR (Exhaust Gas Recirculation) is this...It recirculates exhaust gasses back into the combustion chambers, and being that the exhaust gasses won''t burn, it tends to help cool the combustion chamber. If the EGR valve is unplugged, or not operating properly the combustion chambers can get hot enough to cause detonation (engine ping). When the knock sensor mounted on the engine block detects the pinging, it in turn retards the timing to try and stop the pinging, in effect reducing engine performance. So, in my humble opinion, the EGR plays a vital role in optimal engine performance.
Cheers
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"Giving up" is never an option.
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2000 Limited Edition Ford F-350 Lariat 4x4 Dually, 7.3 Liter Powerstroke Diesel
1985 L98 Corvette
1978 Chevy Camaro LT
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Printable Version
unplug EGR solenoid? - 
