kl passing smog egr issue

[studboy13]

tried to get my car smogger
failed
the guy said my egr was probably bad. he told me to hook a vacuum pump up to it and see if it kills the motor, i did and it did absolutely nothing. the only noticeable difference was the fact that i could hear the exhaust more clearly from the engine bay. i know nothing about egr. is it time to buy a new one, can i clean this one? is this how our egrs work? any help would be greatly appreciated. thank you

[vansolrick]

Rather than just going by what he said, do you have your check engine light on at any time? If so, I would check them. If it is your EGR valve in any way, you should have a code for it.

[projectzemx3]

usually a nice big fresh new cat will do the trick, oxygen sensors might need replacing.

how much higher did it read then the limit?

[Nd4SpdSe]

I had no problems with no EGR here, but Cali may have different limits than Ontario

[projectzemx3]

well egr is just one extra step to being more environmentally friendly, lots of cars dont have egr right from the factory, the cat takes care of it all.

[Juans_93_MX3]

Make sure your car is running good
That it has a tune up and that the fuel canister doesnt have a broken hose.

On the Mazda Mx3 manual (also on MX-3.com) it shows a way you can test the EGR.
If you want, hit up a salavage yard and get one from there.

The EGR works by re-circulating some of the exhaust back into the intake to lower tempratures and make your car more smog friendly. It located behind the Intake Manifold. Its connected to the rear-exhaust header.

To take it out, I'd recommend to take out the rear headers and that can be a pain.

It wont be a bad idea to replace O2 sensors...
really, how much mileage does your car have is the real question
Any CEL?
Have you pulled any codes?


Also, I have heard of people putting Acetone in there gas tank to cheat emissions. Supposebly, it burns cleaner.
I might try that out soon
Do some searching on MX-3.com for that.