Can't pass EMISSIONS Help!!

[JayRolla]

First I will start with all my mods:
Evo 3 16G
2.5 turbo back exhaust with cat
550 cc's
2g mas
FMIC
Greddy E-manage (with profec e-01)with no TUNE!
BS removed
Timing is set to 7 degrees

My readings on my emissions was at idle HC-259, CO%-4.18, and CO2 was 12.2. At 2500 RPM it was at HC-697, CO%-1.75, and CO2 was 12.8. The car seems to miss at idle and 1/4 gass. I can't feel any misses at WOT though. I replace the o2 sensor and ignition wires and missing didn't go away. I also pressure tested it and I have no leaks. I was wondering if anyone had any suggestions on the emissions or the missing? Do u think this could be my ignition coil or a tuning issue?

 

[psychlow]

I would say drop the timing back down to 5* and give it a try, but that's probably not going to be your culprit.....

Maybe you and I need to get together.... I have the exact same problem - and it just so happens I live in the exact same town...

I also have a 2G MAS..... I've replaced the coil pack, the transistor pack, plug wires, and plugs numerous times. Tried all sorts of SAFC settings...

Does your car miss at idle when it's warming up, or only when warm?

 

[marcmsj]

You could also try going to your local parts store and buying a product that will help you pass emissions. You just pour it in your gas tank and that's pretty much it. I've seen a lot of cars pass this way that wasn't passing before. It's worth giving a try since it's only a few bucks.

 

[robs90tsi]

You could also try going to your local parts store and buying a product that will help you pass emissions. You just pour it in your gas tank and that's pretty much it. I've seen a lot of cars pass this way that wasn't passing before. It's worth giving a try since it's only a few bucks.

Im sure they are just as curious as I am to learn the name of this product??? Would say my local Autozone or Pepboys carry this???

 

[marcmsj]

Im sure they are just as curious as I am to learn the name of this product??? Would say my local Autozone or Pepboys carry this???

I believe it's called "Guaranteed to Pass" believe it or not hehe. Yes, autozone or pepboys should have it. Just go in and explain to them what you are looking for.

 

[JayRolla]

It misses all the time at idle! I'm starting to think I got a bad ECU or something else. I also don't think that the emissions pass stuff will help me here but I'll try it anyway. Most likely I just need to get it tuned(MAC autosports). I wonder if they can do emissions or at least get the readings on the dyno to make sure I can pass emissions!

 

[fourreGsixty3]

Hmmm, thats weird. Well glad I dont have that problem, make friends with the guys at what ever local place does emmissions so they will pass you no matter what it reads .Sorry I cant be of more help, but Ive never run into that problem before.

 

[gurmanator]

this is an old hot rod trick but it might work...get your tank close to empty and put two gallons of methanol in the tank and run through the test.we used to do it with our big block chevys so we could pass the test...methanol burns clean but I dont know how o2 sensors will react to it and good luck.

 

[fourreGsixty3]

Oh wow, I never heard of that, would a 50/50 of alcy, help it? Because I know it cleans out carbon deposits, and what not. Not 100% sure if it would help, just food for thought.

 

[SlowSpyder]

you are running rich, not to mention that you have no tuning done especially with 550cc injectors. Your timing should be 10 degrees btdc

 

[erebusknight]

you got 5 gases to be looking at when sniffing the tailpipe with a machine: HC (hydrocarbons = raw fuel), CO, CO2, O2, and NOX. Now a basic rundown.

Complete "Ideal" combustion is achieved at 14.7 parts of air to 1 part of fuel (by weight), which Im sure you all know. At this the engine will produce the best power output, best economy at least pollutants, but we obviously dont have perfect cars yet, so...

HC (ppm)- No combustion at all. This is just fuel unburned that didnt get a hit from the flame or spark plug
CO (%)- Carbon Monoxide. Partially burned fuel that didnt get enough oxygen
CO2 (%)- Good for the burn. Its highest level at 14.7:1.
O2 (%)- the 14.7 parts you want to burn up. Low levels are ideal
NOX (ppm)- These are not your friend. This is for high combustion pressure and high temperatures. Low levels are ideal.
ppm - parts per million
% - percent

So in your case at idle with Stock items (like my setup thus far) I have hooked up a %-gas Analyzer to read some levels. The thing I see the most of HC which is a good sign that you are dumping a lot of fuel without it getting burned in the chamber. Misfires can be lean or rich. Yours are rich by far. Your CAT that you have should be eating all of that up but since it could be bad it lets it through now. Being too rich will make you miss alot also.
Now your is still the same. Good levels are around 0.3-0.5% for a really good system.
0% is an uber efficent CAT.
CO2 isnt really too bad. This is the product of combustion so its normal to see 15% or higher for good systems.

So after all that think of why your pissing too much fuel or not getting a good burn. Heres a good starter list for High CO and High HC levels:
High Fuel pressure
Bad FPR
Bad Injectors
Vapor canister system
PCV system
clogged air filter or restricted air induction

Now if you only had high CO levels it could also be Ignition stuff but since you have both high HC and CO then you are probably going towards Rich Misfire. If you have no spark then you will not burn (which makes CO and CO2). Fuel is the first place I would look. Check your plugs eventually because you could foul them out as well then you will have really bad misfires

PS - High O2 and HC = Lean Misfire (air and raw fuel getting through)
High CO and HC = Rich Misfire (partial burn and unburned fuel getting through)

phew...I try, but good luck with whatever you find out

 

[JayRolla]

Thanks for the info I'll retard the timing and try lean out my fuel mixture and try one last time for emissions. If that don't work I'll bring it to get tuned.

 

[erebusknight]

True, also try to get some good connections like friends in a Auto School or some shop junkies because speed shops will bend you over and give it to your wallet long hard and deep

 

[JayRolla]

I've got a good friend down here that gives me good deals on all my DSM work.He installed my 4 inch thick FMIC and 2.5 SS piping for a whoping $400. He said I should get it tuned also. I'll be getting the Talon dynoed and hope it passes emissions. I need the boost back in my veins!!!

 

[erebusknight]

also very true. I dont think I can drive anything with less then 8 cylinders without some form of forced induction (or NAWZZZ!) as my daily driver. I should get a bumper sticker for my New Bug that says Id rather be in my DSM

 

[this_tsi_8urV8]

I read the opening statement. It did not state anything about plugs being replaced. I would replace them w/the stock 'cold' number. I would also get it tuned; I believe is your culprit. You need the tuning and not just guess on timing, you could end up melting things.
And @ ^^^^ drives a bug, even though he would not drive anything less than 8 cyl unless its F.I. Anything but a bug.
P.S. Do not mean to hurt anyones feelings.

 

[gurmanator]

Oh wow, I never heard of that, would a 50/50 of alcy, help it? Because I know it cleans out carbon deposits, and what not. Not 100% sure if it would help, just food for thought.

I dont know if alcohol would work or not but when I lived in idaho we would get methanol from the stock car racers and put it in our tanks just before we went to the test and it would pass but we would put race fuel in after the test and we were a long way from passing but we had no o2 sensors back then(1984).

 

[rowlex]

nobody has a stock exhaust system laying around? I kept mine JIC i was unable to pass emissions. Threw it back on for my last test passed flying colors. But my car is tuned, so maybe you should attempt to get a tune on your oversized injectors.

 

[JusMX141]

The Auto Parts store I work at sells a product made by Solder Seal/Gunk called "Emission Preparation." Around the store, we call it "Preparation H," it has been known to help a bunch of cars in my area pass the test. Another tip may be routing your PCV hose away from the air filter if it hasn't already been done....if your car has a heap of miles on it the unburnt crankcase fumes that seep by the rings will get recirculated through your intake system and kill your test results. My car's vacuum lines are all rerouted and I have no EGR and I usually have no trouble passing if I lean out my AFC a ton, but I know a ton of repair shops in my area who are willing to "overlook" a few things as well.

 

[psychlow]

I've got a good friend down here that gives me good deals on all my DSM work.He installed my 4 inch thick FMIC and 2.5 SS piping for a whoping $400. He said I should get it tuned also. I'll be getting the Talon dynoed and hope it passes emissions. I need the boost back in my veins!!!

This guy's name isn't Jack by chance, is it?

 

[JayRolla]

Actually it was Jack and I dont think he does them that cheap anymore. Im pretty sure I was the first 4 inch core he installed. When I brought him the core he was so amazed on its size.

 

[erebusknight]

Be weary on how big a n intercooler is...This is a whole other topic, but Ive read about the efficiency is the #1 concern. Endtank design, the core flow design, more channels then longer channels (which is why I would rock a top/bottom endtank design)....its a big mess but I always make sure Im getting the right part for the right job

 

[highboostintsi]

idk if u r gunna pass with those. mods. its possible but its gunna be hard. thats why i loved having property in wisconsin to register my car NO EMISSIONS!

 

[rowlex]

As long as your engine is in good shape (timing is on, good compression) if you tune that car it should pass.

I passed on mine (however i threw the stock exhaust back on) but you do have a cat on yours. Running 780cc injectors, walbro 255, 60-1 turbo... All I ended up needing to do is remove like 43% fuel across the board. Get some tuning equipment and get some compensation for your injectors (or throw in stockers) and you outta pass.

 

[bomextalon]

well since these are your emissions specs at idle HC-259, CO%-4.18, and CO2 was 12.2.

you should actually be at
HC-50ppm or less,
CO- .5% or less,
C02- 12-15% or higher,
02- 0to2%,
NOx-less than 100ppm at idle anything over is considered excessive.

So since your HC's re so high its basically caused by a misfire which could be caused by
1. defective or worn spark plugs
2. defective or loose plug wires.
3. incorrect timing. And your CO% is so high just because it is a rich indicator.

Basically your getting too much fuel. you also may want to check your Oxygen sensor's the secondary sensor should be at least 10% hotter than the first sensor
if you had the rest of the 5gasses from your emissions test I could tell you more if you can post them I can try to help you more. good luck