I know this has been posted many times

I am getting my exhaust done tomorrow as the old one is rotted, will my car pass emissions with a high flow cat, and dual catback exhaust (2.5")

89 rx7, with 135xxxkms, tune up just done

 

While the exhaust helps out I am pretty sure there are many other factors that can lead to a pass or a fail. For example how much pollution the engine puts out, the tune, and so on.

While this does not help to answer your question I am pretty sure it would be difficult to give a definitive answer based on your post.

 

Changing your exhaust doesn't affect you passing or failing. The presence of a catalytic convertor, condition of engine and emission control equipment affects your emission testing results.
Your exhaust leaking would cause us to reject the e-test until its fixed because not only is it pumping out harmful pollutants and it reduces the dilution of the sample which can make you pass if the car is supposed to fail. The gas cap has to hold pressure as well or you will be forced to buy a new one or the test will not be run.
High flow cats tend to be a lot worse than ones of OEM quality though I've heard the Bonez ones are fairly good quality.

PS I am Ontario Drive Clean Certified.

 

can anyone "help" me pass, pm me asap

 

hmmm, no one eh, I doubt that, ill have to sell the car then, if anyones interested

 

The first step is to take it to a testing place and see if it will pass. If so, you're done. if not, they'll recommend repairs. It's about $40 incl tax.

 

Perhaps MazdaMike02 can help you. From reading his post, I would suggest a trip over to his place. He would understand your FC more than other places would. I'm assuming of course that you are not restricted to having to get your car tested in the same locale as where the car is registered. I'm not absolutely positive on that as we don't have emission testing requirements here.

 

Indeed if you want to take it to Alliston Canadian Tire which I where I am I can run it for you. Is there a specific reason your car wont pass e-test? Don't just sell it if it doesn't pass I'm sure it doesn't need that much.

 

It failed everything but the no% at 40km, all the other numbers were high other than that

 

Get cleaner air, run lowest octane possible, and run NGK factory or hotter plugs. Check your timing.

NOx emissions are a result of combustion temperature, so if you have some room to run a little bit hotter burn temperature, it should help burn up some of the excess fuel and carbon if it is running rich (which is your HC reading).

How far off were your HCs anyways? Did you have too high NOx at idle too or no?

http://www.ngksparkplugs.ca/tech-info-spark-plugs.cfm

Take a look, maybe try advancing the timing a little bit for the test, or go on a day when it's not 100% humidity and 30 degrees outside (no air density).

 

40km/h Limit Reading
HCppm 64 453
CO% 0.35 3.96
NOppm 0727 49


Curb Idle
HCppm 200 1212
CO% 1 3.10

 

so what happened? did you get a new cat put on before this test? i would say by looking at this that you dont have a cat at all. also that you are running insanely rich.

 

I second that.

Mine wouldn't pass either. It was ~15x over the limit in HC.
Turns out I had a cat shield, and no cat

 

I just put a new cat and exhaust on, I know I'm running rich, no idea on how to tune a rotary engine tho

 

okay, i mean we all know we are running rich...we drive cars with rotaries in them...but if you have a new cat and are putting out numebrs like that...you must be running seriously rich man. the car would reak of fuel and i would think you'd leave a little cloud behind you ever time you got on it too. So either get a "friend" to test your car or get that thing runnning properly.

 

I'm Looking for that "friend", help?

 

You won't find that friend on the internet.

Get some "Guaranteed to Pass", put it in the tank for the test.
Advance your timing, and use NGK plugs.
Warm the car up, and go for the test. Pay the twenty bucks.

Then, when you fail, you'll have new readings. Perhaps now it only failed HC at idle by a few hairs rather than everything. Then you have new options to try, and you have minimized your problems.

Or, you pass, and it's over.

 

Right - no one is going to advertise on the web that they'll issue an illegal test result. I think you'll have to go to a few shops and ask in person. I heard that some people pay $250 for one of these.

For what it's worth, I used to take my 1986 MR2 to a fellow in Thornhill - Gary Chin. I don't know what or how he did it, but my car always passed and he just charged me the regular rate. KGF Auto Service Center Ltd. (905) 709-9733.

 

when you do the 40 test ask them to have it in 2nd gear that should work and thats what they do if it will not pass

 

so I took a look @ my air pump today, it has a tube coming off of the top that goes absolutely no where, it is sucking in air upon idle, and when you give it gas, I think it should be going somewhere, any suggestions, this would cause it to run rich would it not?

 

here are some pictures, help would be greatly appreciated

thanks

 

Look how rich it's running!

Those plugs should not be black on the tips. Advance the timing on the CAS, you might even notice more power.

That air pump line is a suction side line only, so as long as you're cool with unfiltered air entering the airpump, then don't worry about it.

Are those ordered by leading and trailing per rotor? If so, looks like one rotor is running alot richer, which could suggest numerous things... Leaky injector on that side of the engine, low compression on that side, restricted intake on that side, one 6 port sleeve stuck, etc.

 

ah... do you hve a line running to yur cat from the air pump?

 

how do I advance my timing on the cas?

I have a tube running from my cat to somewhere :s

 

does any of your rx7 pass etest anyway?? will i pass smog with the air pump removed??