At 08:48 PM 10/12/00 -0400, you wrote:
subs as [ Artificial Octane Boost ] a mechanism to slow and smooth Combustion. Hearing detonation is worse case scenario , it can be happening without being audible to your ear . It is audible to the KS . At minimum , long term exposure to detonation will soften the piston decks and accelerate , top ring land wear. If you see shiny specks on plug insulators , that's your pistons melting away on the Fly.I disabled EGR (1b3 set to 00) on my stock '91 C2500 350/A4, 7747. When I took it for a test drive it knocked alittle during cruise and light throttle accel. Should disabling EGR cause it to knock? I thought it would run the same as with EGR on, seeing how EGR adds spark and removes fuel. Regards BrentH. Disabling the EGR , removes the Addition of the Inert Exhaust Gas , which
EGR tip in Added Spark Advance and leaning fuel works in concert to add
fuel mileage and reduce NOx emission levels. It's all part of a plan.
Len
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