I was recently tagged for state ref cuz i had a cone filter on my stock intake arm. I go reff and my emissions are off the charts. i put in a new o2 sensor, bought a used obd2 cat and it still burns super rich. I was also told that the obd2 p72 ecu cant be chipped, but my vtec kicks in @4500......so does any1 know if theres any truth to that? i need to know wat i should change first........is it my ecu or should i jus get a brand new cat? and where can i get a brand new obd2 cat for a good price? any help would be much appreciated!!!

Thanx a milli!

 

What is it that you failed on? Nox, HC, Co2? Check to see if timing is right.

 

15 mph
HC:306 CO:0.70 NO:2736

25mph
HC:217 CO:0.48 NO:1668

reff guy said timing is ok and wierd how its burning so rich but throwimg no CEL.

 

your cat converter is no good for sure! Nox I believe is because the temerature is in the combustion chamber is high. HC is because your running rich, and not enough fuel is getting burned. First change the cat, i would seafoam the car, change oil and run 91 octane before you go back. Seafoam will help with the NOx, oil change will help with HC, and 91 will help it burn throughly.

 

thanx man. should i seafoam the fuel and the oil? where can i get a new cat for a good price?

 

Damn CA emissions must suck. Might want to try a general tune up if you havent done one in awhile. GL bro

 

yea really sucks ***. i did a recent tune up before reff, new plugs and oil change

 

If you already did all that, and your still failing by thousands of ppm, its your cat converter. To replace it I've been told autozone carry them now, but they cost like $200+. Maybe you can get another cat, but hopefully it would still be good.

 

Maybe a carsound cat from egay or something? they are cheaper then the auto zone, but they aren't vehicle specific so some welding would most likely be needed

 

Are the valves adjusted?
Are you burning any oil (valve seals)?
What is your compression in all cylinders?

BTW: OBDII can be chipped. It is rare, difficult, and burn once.

 

i am burning oil, cuz my valve guides r bad......dunno if that would affect smog??? does it?

 

valves seem 2 be fine, idles fine. compression is kool also

 

since your burning oil thats why your hc are very high.

 

There is your HC source.

 

i jus called autozone. 450 for a cat converter for a 96 integra

 

dammit....hope a new cat would pass me. cuz i dont got the time and money for a new head or new valve guides. i know the guides arent that expensive but i jus dont know how to install valeve guides.....sshit

 

could prolly get away with new valve guide seals. They are pretty cheap, but involves ripping the head down

 

Get another head and have it rebuilt, new valve job, new valve stem seals. Swap the head and install a new timing belt and water pump while you're at it. It's probably due for new ones anyways.

 

Hes right^^^ your going need to stop that oil burning, if not your going to contiue to fail.

 

wen it comes to the valve train, im pretty clueless. i jus know wat the main parts look like for ex: cams, rocker arms, retainers, springs and valves.....dont know where the valve guides are or the seals....hahaha

 

wen i bought the car, it already had a bad head with bent valves so i picked up an 95 gsr head......dude told me it was kool(****ing *******)....but i did the timng belt and oil pump wen i put the 95 head on......guess i got duped!!!

 

You could always just get another head, and put it in and get the other head rebuilt in the mean time.

 

i think thats my best bet, but my court date is next month.....no job either.....dam i gotta go rob somebody....lmao. but thanx to every1 that responded. im jus gonna try a new cat 1st....

 

If you could find a smog place uses the motto "no pass no pay" you'll be able to test out your emission before you go to state ref.

 

find urself a universal magnaflow obd2/cali approved n u should pass..i had the same problem when i tried to Bar my gsr