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EGR 2000 Chevy 5.3

Old May 21, 2021 | 08:48 AM
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Default 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.
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Old May 21, 2021 | 05:10 PM
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Lots of people have. Go ahead and do it if you want. You'll just want to tune the computer so none of that functions anymore.
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Old May 21, 2021 | 08:26 PM
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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
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Old May 23, 2021 | 01:41 AM
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No real benefits that I know of, it only activates at WOT from what I remember.
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Old May 23, 2021 | 10:03 AM
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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.
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Old May 23, 2021 | 11:06 AM
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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
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Old May 24, 2021 | 12:00 PM
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Originally Posted by RB04Av
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.
Spot on! Great response. My NBS 4.8 pinged like a mother when the EGR harness kept shorting out. Finally fixed it and voila - ping gone. The only real downside to EGR on a DBC engine is that you'll make less torque when it's active and it might not hold hills very well without more input. DBW and VVT setups are magic though because it can open the throttle body more without us even asking for it.
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