I failed emissions and I have a print out of what failed.

Hydrocarbon level are supposed to be 114 they are 168

Carbon monoxide levels are supposed to be 0.63% they are 0.70%

Oxides of Nitrogen level are supposed to be 796 they are 1082

and this is at 25 mph and 2107 rpms.

these are what i failed, and I am just asking you guys for any help. If you kno w what could be causing me to fail. The only mods on the car are K&N CAI and new trickflow intake elbow and Borla catback. I didnt think the borla could play a factor in this? Could it. I dont know that is why i am asking you fellas. Of course any help is much appreciated. Thank you Cory If you need additional info just let me know.

 

What I know about the Borla is that the plate system inside it works sort of like a cutout. If you use the louder plates, you're pushing more raw exhaust gas through the passenger side and less muffled (potentially cleaner?) exhaust gas out the driver's side. What plate are you currently using in the catback? No other mods? No headers, modified catback, leaky y-pipe, anything like that? I'd say if I'm totally wrong on the plate system in your catback, check known-to-be-faulty emission control items like your AIR pump and EGR.

Anyone else with some good advice here?

Bryan

 

Go check out some fuel system, intake cleaner. When I used to work for Valvoline we had what we called a 3-part(60 bucks i think) it would clean injectors, TB, and your intake manifold, it actually helps pass emissions. Your car will smoke like hellI did it to mine and it was awesome! Hope it helps, good luck!

 

the fella before me lost all the plates to the borla, so i think that it is runniong wide open, how can i check ive never messed with borla before where do the plates go? maybe that might help. Also what is seafoam and what does it do?

 

Seafoam is a solvent designed to clean every trace of built up carbon from your combustion chamber. You feed it through your brake booster line until the car stalls out and dies, let it sit for 15 minutes, and drive the **** out of it until all the white smoke stops blowing out of your catback. That smoke is/was/will be all the built-up carbon deposits in the combustion chamber (cylinder walls, etc.) I swear by the stuff, thanks to scoobysnax.

 

The Hydrocarbons and the Carbon Monoxide are way too high and that tells me you are burining too much gasoline or you are burning oil....

What has me confused here is your NOx content.... NOx is the result of too high combustion chamber temperatures... If you are burning too much gas you should be having too COLD a combustion as opposed to a too HOT one.


Do you also have the Oxygen Content in your print out?? if the oxygen is high that would sound to me as a Misfire that the PCM reads as too much gas.... thereby leaning out the good Cylinders and creating that Hot Combustion Chamber issue that creates too much NOx.


One thing is fer sure... Check your Cat/Cats they maybe bad//Ignition for Misfiring//bad or cloagged injector//mailfuctioning EGR.

Can you hook it up to a scanner to read the duty cycle of your injectors?? You wanna read Timing and you want to check your coolant too....

If anyone has any better ideas... please help this man out..

Marvin

 

ok the O2 readings are 2.5% at 2107rpms and the2.6 at 1929rpms des this tell you anything else. Soa re you saying that a misfire could be causing all this? also where can I get seafoam?

 

did they let your car run for a while or did you strap it on.. start it up and run it right away?


also, you should drive around for a while to get your cat good and hot.. that will help incase you didnt already do that.

 

Absolutely yes... You have too much Oxygen content... Check for misfiring or even an Exhaust Leak!!

You want the lowest possible oxygen content.... meaning you were able to burn all the oxygen (gasoline burns with oxygen)...
I have seen car in excell condition with Oxygen levels in the 1 percent or even lower.... On some Cars Two percent of oxygen is still good...Those lean burning Hondas for example.


What I would check on your car first would be... Exhaust leaks, Ignition (for misfiring) Carbon deposites in the cylinders.

Its your car burning oil?? Oh dont forget the dreaded vacum leaks...

Marvin

 

Put a new Cat on and you will pass unless your running way rich.

 

This is true. Just dont drive a zillion miles after you put the new Cat on... drive directly to the test facilities and get it done with.

Then you will have enough time to chase your actual problem.

Marvin

 

Somewhere here I read a thread where the guy said to put 4 or 5 bottles of gas line antifreeze into less than 1/4 tank of gas and it would pass. Anyone heard of this?

 

no the car is not burning oil, thanks for all your help guys. I will start checking for ignition probs actually ill probably take it to a mechanic and have his opinion on the print out and see if it is any way consistent with what you guys are telling me. Thanks for all your help. Oh yah and i am having trouble finding this seafoam stuff. im in dallas