Delete or not to delete the EGR sys.

[firefighterwhite89]

Do you think it's a good idea to delete your EGR system? To me, it seems pointless to recycle non-combustible gases back into the system, along with all of its lovely nastiness. But, that's my opinion. What's yours?

[Vanilla Sky]

Keep it. It lowers emissions and can boost fuel economy. If your EGR system is working fine, why take the time to remove it? You don't remove your spare kidney or your appendix, do you? Sure, it's something to consider when you have appendicitis, but you don't worry about it until it's a real issue.

[ShyBoyCA6]

i would keep it man. better mpg and a happy car.

[firefighterwhite89]

Er, when i rebuilt my motor, i traced most of the thick carbon deposits back to the EGR system. Took forever to remove most of it. I know it helped in the losing of HP overtime. I found the pros outweighed the cons. I still attain 26-28MPG with normal driving, and it runs just fine without it. It's still on there, and plugged up. But the holes for the pipe are welded on the exhaust and blocked off with a plate/nuts on the intake. Good thought though. Why replace it if it isn't broke?

[Vanilla Sky]

If you have a lot of oil burning, you get heavy carboning. That's an issue that wouldn't turn up without EGR, but you'd still be down on power.

The PCV system also puts oil vapor in the intake tract. You keep the PCV system because it actually gives your rings a better seal and keeps your oil cleaner.

[firefighterwhite89]

Ah. Good thought. I do use an oil catch can. Need to post pics of it too, but i own no camera. Made it from a mason jar, the lid, 3 PVC barbs, 2 M10-1.0 Nuts, 4 washers, a good bit of JB Weld, Parts of an election sign, and steel wool. Quite an interesting combo. I Tried to rid of the worst carbon/sludge depositing things. I would like to keep the engine much cleaner, and i see this happening without an EGR system, and adding a catch can.
And emissions is not a worry here in Alabama. We're the last state to pass any laws, every time, guaranteed. lol. This is why you can find an abundance of cars with no cat and a front fender exhaust, or hood exhaust and even the occasional vehicle with only a header and short downpipe. And usually, most people get rid of these emission parts, as they are pointless here.at least for the next 5-10yrs. anyways.

[Vanilla Sky]

how many hundreds of thousands of miles did it take to cake up the system? I've taken apart 200,000 A20 engines that were still reasonably clean. I'm talking about abused cars, not cream puffs.

[Dr_Snooz]

The EGR helps to prevent pinging. You want to keep it. Consistent maintenance using good chemicals and good gas helps to prevent carbon build-up. You want to do that too.

[MessyHonda]

only take it off when you really dont need it. if you convert to OBD1 the manual ecus dont use egr...but strugglebucket found out that a automatic OBD1 ecu uses a egr but you can always flash it so it can still use egr. i took mine out because the b16 mani does not have a egr inlet

[Strugglebucket]

I'd say if your ecu expects to have egr, you need to keep it. Just keep the car in good shape, don't use cheap gas, and remember to Seafoam it every once in a while.

If you switch to an ecu that doesn't use egr(like 99% of obd-1 hondas), then get rid of it.

[AccordEpicenter]

The EGR helps to prevent pinging.

This. You can crimp the pipe so in effect you are eliminating the EGR function but youd have to leave the valve installed to prevent a cel or massive vaccuum leak. It doesnt hurt to leave it, and I would leave it unless there is some reason you need it gone. Ive noticed that a plugged up EGR port on alot of hondas makes them ping like a mother fucker part throttle.