EGR delete., 7afe Options

[92-gt]

Has anybody done this?

I just got done helping my friend do it on his 2jz. It wasnt bad at all on his car.

I looked at the system on my 7afe and it didnt look to be too bad.

My only concern is, will it throw a CEL?

Thanks for any input on the subject.

[dgbldr]

NO, you are giving bad info and the discussion is important because it's important to debunk it.

1. At PART THROTTLE (remember EGR only works at part throttle), you have plenty extra cooling capacity. If your cooling system can't handle a little extra heat at part throttle, it certainly can't handle WOT power for ANY length of time. Simple proof: disable EGR and drive car. It will NOT overheat.

2. That's why you have this thing called an O2 sensor and this other thing called an ECM. You put air in with your right foot, it puts fuel in to match and keep the A/F ratio where it belongs. And keep it there, EGR or not. It's called a closed loop system.

3. Race cars very rarely operate at part throttle. If you ever drove one, you'd already know that. So even if they did have EGR, it would almost never operate.

4. No, EGR does not operate at idle. There is very little air going into the engine at idle, especially on a manual transmission car. The EGR cannot accurately meter a tiny amount of exhaust gas and it would result in unstable idle.

Can't speak for your unstable standalone ECU, but it's obvious it can't cope with EGR. That doesn't say anything about EGR, it just says YOUR box can't handle it.

Oh, and another thing:

the fact that they are sucking in unmetered exhaust gas that has an unmetered amount of oxygen cause some ecus to "freak out" is the best way to put it...

One last time: exhaust gas does NOT contain oxygen, unless your car is running on 3 cylinders.