EGR 2000 Chevy 5.3
05-21-2021, 08:48 AM
#1
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EGR 2000 Chevy 5.3
Whats up guys i was wondering if any one has deleted thier EGR on similar vehicles. I know that newer vehicles dont have it and what are if any benifots aside from a cleaner intake.
05-21-2021, 08:26 PM
#3
Staging Lane
Yes, I tuned mine out - no Check Engine Light or DTC code. They ("Dirty Dingo", IIRC) also make a block off plate so that you can remove that ugly hose and the EGR solenoid and not have a huge vacuum leak.
Rick
Rick
05-23-2021, 01:41 AM
#4
TECH Junkie
No real benefits that I know of, it only activates at WOT from what I remember.
05-23-2021, 10:03 AM
#5
EGR usually is active at cruise. Not WOT, not idle; steady-state moderate power type conditions. What the engine spends most of its time doing, in a street vehicle.
Its main purpose is to reduce combustion temps under those circumstances, helping to minimize NOx emissions. Nitrogen doesn't burn until some particularly high temp is reached, which can happen with very lean mixtures and lots of timing, which in turn promotes fuel mileage. It also helps reduce pinging at such times.
From what I can recall of those, shouldn't be too hard to make a blockoff yourself, if you want... a piece of aluminum strip stock such as from the hardware store, and acoupla holes, and cut it to size and shape. Maybe steel at the exh manifold end.
Its main purpose is to reduce combustion temps under those circumstances, helping to minimize NOx emissions. Nitrogen doesn't burn until some particularly high temp is reached, which can happen with very lean mixtures and lots of timing, which in turn promotes fuel mileage. It also helps reduce pinging at such times.
From what I can recall of those, shouldn't be too hard to make a blockoff yourself, if you want... a piece of aluminum strip stock such as from the hardware store, and acoupla holes, and cut it to size and shape. Maybe steel at the exh manifold end.
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lucasmac (05-24-2021)
05-23-2021, 11:06 AM
#6
TECH Junkie
See I thought it was the other way around OR it was only active at like a set cruise speed it is one of those things that have a very specific set of requirements to get it working
05-24-2021, 12:00 PM
#7
Teching In
EGR usually is active at cruise. Not WOT, not idle; steady-state moderate power type conditions. What the engine spends most of its time doing, in a street vehicle.
Its main purpose is to reduce combustion temps under those circumstances, helping to minimize NOx emissions. Nitrogen doesn't burn until some particularly high temp is reached, which can happen with very lean mixtures and lots of timing, which in turn promotes fuel mileage. It also helps reduce pinging at such times.
From what I can recall of those, shouldn't be too hard to make a blockoff yourself, if you want... a piece of aluminum strip stock such as from the hardware store, and acoupla holes, and cut it to size and shape. Maybe steel at the exh manifold end.
Its main purpose is to reduce combustion temps under those circumstances, helping to minimize NOx emissions. Nitrogen doesn't burn until some particularly high temp is reached, which can happen with very lean mixtures and lots of timing, which in turn promotes fuel mileage. It also helps reduce pinging at such times.
From what I can recall of those, shouldn't be too hard to make a blockoff yourself, if you want... a piece of aluminum strip stock such as from the hardware store, and acoupla holes, and cut it to size and shape. Maybe steel at the exh manifold end.
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