Delaware state is max numbers of 220. Mine where 4255... What can i do to lower my emissions, im running a 95 ls bottom end with a 99 b16 head stock exhaust still and I didn't even run through with a chiped computer . Please some one have a clue what's wrong help me out .

 

First, you don't need to have the font at 36+

Second, what numbers? Smog? You need to be more clear of what "numbers" you are referring too.

Ecu? any other mods done other than what looks to be an ls/vtec?

You need to give a lot more information... or we can't help you. I understand you want help, but I am not a mind reader.

 

What he said. Also, relax with the huge, bold font.

 

Sorry did it from my phone wont happen again any ways ls vtec stock 95 ls computer stock injectors , 99-2000 si manifold all vacume lines are hooked Jupiter no leaks no exhaust leaks and the numbers it failed for that I was speaking of is hydro carbon ....

 

well if your catalytic converter isn't burned out with that high of hc readings, it will be soon. same goes for your o2 sensor.
what were the readings for nox and co? if applicable

 

make sure that your car and cat is super hot when u take it in, i mean beat on it good, if your cat is oem it'll last 10 yearsish then they start to fail, if its an aftermarket cat most last about 2 years. i have a boosted b18c1 in an ls with 450cc injectors and fully tuned my car passes with a magnaflow cat so i wouldnt be worried about your ecu or the motor swap if you HC is too high its faulty cat, cold cat, or somehow you're running super rich.

 

if you have cel's check them cuz you o2 sensor will make it run rich if it's bad or even just lazy but where i live they won't even test your car if you have a cel.

 

oe cats don't just burn out over time. it is the result of another malfunction. many people just replace the cat thinking they've solved the problem, but have only solved the symptom of the problem.

if you're getting those hc numbers combined with high nox and high co, i'd suspect the cat to have failed. but then, you have to figure what caused it to fail.

if you're getting high hc numbers combined with lower than average nox, it's likely an ignition related issue
the readings will always be proportionate. one will always effect the other.

 

okay lets see bot hc and nox are both high and first lets go back the car was running guy blew head gasket , car sat with out engine for a while i put ls v in it from my buddies si hatch never had an issue in his yet he never went through inspection , and his exhaust was pretty much straight through tuned for a 02 delete , im running same engine but on completely stock exhaust intake manifold and injectors also still running on the stock ls computer i know i know but im safe not reving past 5500 rpms and i do have another chipped p06 fro it but i have not ran my vtec wires yet and no that will not make you run high numbers while testing emissions ... but back to what yall are saying yes i have high carbon and nox so from here i replace the cat and 02 and hope for a better day , possibly some fresh plugs and retard the timing to get through or what im running out of time and this is my new daily driver back and forth to school an hour away oh and yes it is running rich as hell all i smell is fuel ...

 

check the timing
replace the cat and o2 sensor
you will smell raw fuel if the cat is burnt out, as one of the cats jobs is to breakdown the hc.

 

cats stop catalyzing over time, oe takes a really long time but will eventually need replacing because they no longer get hot enough for the catalyst to break down hydrocarbons. because u have both over the limit HC and NOX i say its the cat if it was another issue you would have one or the other, like i said try it again and beat on it before u take it there, do not shut it off if u have to wait. U can try a cheater method too which is add methyl hydrate to your gas but be warned methyl hydrate has no lubricity and is hard on your fuel system if u go this route i would have a quarter tank add a litre, get the car hot do the test then immediately fill the car when you're done, thats the cheap route if youre broke. If you're not buy a maganflow cat for 150 bucks and u should be golden. Hondas are also notorious for burning oil which can contribute to cat not working properly but i personally have had a car that would not pass until i beat the **** out of it till the cat was almost glowing, heat is key. Also if the car is cold it will be running in full rich mode until it warms up and even a brand new car would fail. If your o2 sensor was bad you would have a cel if it's just lazy the numbers would be off maybe 50 or 100 ppm but were talking 1000's here. and don't retard the timing run it at 15 + or - 2 deg and that will do for e test. apologies for the long reply but emissions can be tricky but theres always a way around it, usually just comes down to how much ur willing to spend. Do you guys have the hot rod law down there for motor swaps???

 

theres an edit button you should repost this with normal font size mang... people are not blind or emotionally dependent on letter size so bigger letters dont mean higher importance lol

 

Running a proper ECU would be more helpful. A p72/ P30 would suit your setup better. The CAT and 4 wire O2 must also be functional. Set your ignition timing also.

 

a slow o2 sensor won't always set a code. if it's been contaminated with fuel, it'll burn out that magnaflow cat like nobodies business.
personally, i'd sooner find a decent used oe cat than put in an aftermarket unit.

first and foremost, you want to check your timing. if it's too far advanced, you will get higher hc and nox readings. retarding the timing to say 14*btdc will lower your hc numbers.

usually what we do to check the cat is drill a small hole right before the cat and peek inside with a boroscope. you can also measure the temperature of the exhaust after the cat. the cats job is to heat the exhaust. the heat causes the chemical reactions to change the molecular compounds of the emissions.
but if all 3 emissions are high, i'd have to say the cat has failed.
this is why you want to check your timing first. see if that is the culprit for the burnt cat. if it's too far advanced, retard it, depending on where it's at.

so, again. what i would do, and in this order:
check timing, adjust accordingly
if it's not way out to lunch,
replace o2 sensor
replace cat

also, as stated, wouldn't be a bad idea to have the correct pcm in there
personally, i wouldn't use any type of additives. sure, they may get you a pass, but they won't solve your problem(s)

 

thanks