Everyone has their opinion on this. IMO, if you have a daily driver stock USDM vehicle, then you need your EGR system in place. But you seem to have a JDM engine w/c doesn't even have an EGR system.
JDM's don't have the EGR because it is an emissions control that they only have on the USDM engines. I'll probably end up doing it one of these days only because it cleans up the engine, and I live in Ohio where they don't check for emissions!
lol jdm's dont have EGR's? i thought 94 and up didnt
Yea... you don't have egr buddy. I don't know exactly what you are trying to block off . Sounds like your in the mood to spend some money. Go get a boost controller, boost gauge and/or and intercooler. That will fill your fix for a while.
Removing EGR will only result in using more fuel if you'll call that a benefit.
I have to disagree.
All the EGR system does is recirculate some of the already burnt exhaust gasses back to the intake, to reduce combustion temps. The recirculated exhaust enters the intake stream after the AFM, so no fuel is added to compensate for it.
And only a small amount is "leaked" in, and only under low load (cruising) conditions. An EGR system has no effect on gas mileage, performance, or efficiency. It only reduces the combustion temp by dilluting the A/F mixture. Thus reducing the nitrogen pollution output of your exhaust.
The only real benefits to removing it (blocking it off) are it keeps your intake manifold a lot cleaner, and it takes a little clutter out of the engine bay.
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"It's hard to drive at your limit, but it's harder to know where it is." -Sterling Moss
^From Toyota Factory Manual, it say check EGR for bad gas miliage.
I don't know why it'll help but it did on my 5S-FE. I had a non functioning EGR and it got block off. I'm lucky to get 9km/L. I fixed it recently and I'm getting close to 10km/L. I've try everything else to get better miliage: plug, coil, wire, oil but only a working EGR helps.
The recuirating may have something to do with how the ECU manage fuel cause it'll affect the O2 sensor a bit.
All the EGR system does is recirculate some of the already burnt exhaust gasses back to the intake, to reduce combustion temps. The recirculated exhaust enters the intake stream after the AFM, so no fuel is added to compensate for it.
And only a small amount is "leaked" in, and only under low load (cruising) conditions. An EGR system has no effect on gas mileage, performance, or efficiency. It only reduces the combustion temp by dilluting the A/F mixture. Thus reducing the nitrogen pollution output of your exhaust.
The only real benefits to removing it (blocking it off) are it keeps your intake manifold a lot cleaner, and it takes a little clutter out of the engine bay.
So during closed loop, if it's reducing combustion temps, and no fuel is added to compensate for it, and it's dilluting the a/f mixture, how can you say it has no effect on gas mileage, performance, and efficiency? I agree w/ all of your statements except for the part about it has no effect on gas mileage etc, and reducing nitrogen output. It doesn't reduce nitrogen, it prevents the formation of NOx(oxides of nitrogen), x being a variable. The EGR system is there for better fuel economy. Better fuel economy translates to lower emissions. So, unless you have a track only car, JDM engine w/ JDM ECU or a tuned EMS, or like pumping gas more often, IMO keep the EGR system intact. It's there for fuel economy, it won't hinder your car from going faster. In fact, it's not even enegized(the vsv) @ WOT.
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. Sounds like your in the mood to spend some money. Go get a boost controller, boost gauge and/or and intercooler. That will fill your fix for a while.
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