masterB

The CO and NO is fine, but the HC is a little bit more than allowed. Max allowed is 54 at 15mph test and 37 at 25mph test, I have 58 and 49. My car has a cold air intake and a Y pipe. Does anyone have similar problem and how do you get your car pass the smog check?

NmexMAX

iTrader: (22)

Did you let it warm up beforehand? Do you have the main cat still in place?

masterB

yea the main cat is still there. how long should the warm up be? should I be driving the car to warm it up or just let it sit to warm up?

THT

iTrader: (8)

Get the car to operating temp then do some spirited driving. Take the car in, don't turn it off and get it tested. You'll pass.

Bobo

How far did you drive and at what speed and how long was the engine on before you were tested?

Supermax95

iTrader: (2)

the car needs to warm up a bit to open up the precats or something, atleast thats the story with a calispec.

masterB

drove about 2 miles and sitting with the engine on for 5 mins. I guess that isn't enough. I will drive at least 5 miles and do some pedal to the metal driving before the test again tomorrow

Dave H.

iTrader: (5)

I say drive on the freeway at least 10-15 minutes or in town 20 minutes. That'll get it nice and warmed up. You don't need to go pedal to the metal. Just get it warmed up. I thought everyone knew to get their car warmed up properly before testing emissions. Hmm...
Let us know how it turns out tomorrow.....thanks...

Bobo

Drive further and warm the car up longer. Don't turn it off when you get to emissions testing.

When was the last time you changed your spark plugs, air filter, oil & filter?

sdoherty_tjm

if you have a y-pipe then your precats are gone, with out the precats you'll fail if its not warm, you need to let it warm up for the actual cat to work

NmexMAX

iTrader: (22)

9 posts that state the same thing ... THT IMO was the best... any other votes ...

Bobo

Not to usurp your duties, NmexMax but this thread sucks! (Where is the icon)?

NmexMAX

iTrader: (22)

hehe I know I know ... It started out ok ... But it's in the stickys, and I'm trying to be nice today .. Also, he hasn't chimed in so either he took his car in cold or there;s something else wrong ... But at it;s CURRENT state

masterB

I'm f***ed!! I went to do the smog check after the car warmed up completly, and I still failed the god damn smog check. I need ideas what I need to fix to pass the smog check. My worst case is borrow a stock y pipe from someone to pass the test but I really don't want to do that. HELP ME PLEASE.

Bobo

What were your readings relative to the first failed test? Do you still have your stock air box? What make of y-pipe do you have? What did you do with your OEM y-pipe? They are quite expensive and you should have hung on to it.

Also what year is your car and how many miles are on it?

Supermax95

iTrader: (2)

hrm....y pipe b pipe catback and pop charger i passed no problems....maybe cuz mine is a calispec?

madnut

How old is your CAT? it is quite possible that your cat is just old and needs to be replaced.