Unhook EGR?
#1
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Car: 1991 Z-28
Engine: 350 SBC
Transmission: Probuilt 700R-4
Unhook EGR?
I am trying to start my car tomorrow, with alot of motor upgrades. I cannot find the small line that goes from the EGR to that little piece on the back of the manifold. What would happen if I started the car without this hooked up? I am not exactly sure what an EGR does either, maybe somebody can help me out there too. Thanx guys.
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Car: 1987 IROC-Z28
Engine: 383 Vortec - carb
Transmission: T56 - 6speed
You can get vaccuum terminators at any local autoparts store in the HELP section. Just throw those on there to prevent vaccuum leaks.
Hodge
Hodge
#4
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I ripped the egr right out of my 88 gta tpi, and it runs better. the egr takes air pressure from your smog pump on the fanbelt and pumps the air into your manifolds and cat. egr means emission gas recirculation. i removed the cat, air lines, smog pump and egr with no problems.
#5
I was just about to post a question about this myself.
So I can delete my EGR and it won't affect my performance, driveability, economy, or throw off a check engine light???
This is good news!!
So I can delete my EGR and it won't affect my performance, driveability, economy, or throw off a check engine light???
This is good news!!
#6
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Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
I'm pretty sure it will throw a code but it's not an important sensor so the car will run the same. You'll need to keep it if you have to smog though.
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#9
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I know that this is an old posting but some things should be said correctly about the EGR valve, first it stands for Exhaust Gas Recilculation, Second it controls the NOX (Emissions gas tested for in some states). It cools down combustion chamber temps by introducing spent exhaust into the intake charge. If you look at your intake you will notice that there is an EGR passage that ties right into an exhaust passage. The EGR valve can vary the amount of exhaust gas according to engine vacuum or an electronically controled solenoid. You can get away with unhooking it but it might throw an occasional code. From experience I have noticed no significant gain in removing it . I am not trying to trash anyone for not knowing what it does, but I have heard a lot of misconceptions about it and am just trying to clear it up.
#10
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Engine: 5.7L V8
Transmission: 700R4
If you are going to remove your EGR system, you should burn a new PROM so the ECM knows that it's not there. Otherwise the ECM will advance the timing thinking that the EGR is cooling the combustion chambers... but you aren't, so you will probably see some knock.
How do I know? It happened to me.
How do I know? It happened to me.
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HoosierinWA
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