NXPRSS

iTrader: (23)

Hey guys, i have a 93 T/A and it was due for emissions, so i took it today and failed the hydrocarbon test. the worst part is the limit on the test is a 53 and i got a 54! how bad does that suck!?
anyone know what i need done to pass this test?
it really sucks i missed it by one damn point!!

97LT1

iTrader: (3)

if you have not yet, swap in a hotter thermostat to help clean up your emissions that you put out.

396D1SS

iTrader: (21)

what kind of mods do you have?

NXPRSS

iTrader: (23)

i have a 160 degreet thermostat, k&n intake, throttle body airfoil, and nitrous...
i did some reading online and someone said if you drove on the highway it would clean out the hydrocarbons... is this true? the exhaust is still stock from the factory. i know the hydrocarbons have something to do with the cat. but i only missed by 1 point. i was thinking about getting a borla cat-back exhaust, do you think this will help me pass that test or will it make me fail a different test?? someone said to put drygas in before i go...
So i should put a hotter thermostat in ??
Thanks for the help guys...

Ironxcross

iTrader: (8)

take it to a shop to get it inspected. and then get long tubes, ory, and some kind of catback.

be loud.

big dave

I feel ya pain. My h/c setup failed h/c also...barely. If your motor is still stock, I don't see any reason why you should fail. As stated already, make sure the car is fully warmed up before testing.

NXPRSS

iTrader: (23)

yea, my car wasnt warmed up at all... i drove it like 2mins and i was at the shop already... if i get the borla cat-back exhaust, would that screw up any other emission tests??

97blackz28

iTrader: (6)

you have to drive the car for about 10-15 minutes before you take the test to heat up your cat. if you do that i bet you pass no problem.

infinitebird

iTrader: (11)

yeah, if you barely failed with it cold then you'll have no problem with it at normal temp.

NXPRSS

iTrader: (23)

Alright, thanks guys, i am gonna sea-foam the car before i go back for the test, and make sure the car is at normal temp. thanks for all the help...