update: All it needed to pass was a new air filter

Went for test today and failed.....




Now why would I fail when they do a test while simulated driving but not on idle?

Also what part could be the leading cause.

Thanks

Stock D16y7 engine with just intake
everything else stock


Modified by tony at 5:05 PM 2/2/2006

 

Should i change my intake back to stock?

 

maybe a tired cat or O2 sensor, and when was the last time you changed your oil.

 

changed the oil. spark plug. and wires the day before i went.

 

bump

 

how many miles on the motor and cat?

 

140,000 miles on the motor and i think around 50,000 on the cat

 

Try a new cat. I burnt my cat out like 3 months after having it. Too much fun with the b16 lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eXcelonTypeR &raquo;</TD></TR><TR><TD CLASS="quote">Try a new cat. I burnt my cat out like 3 months after having it. Too much fun with the b16 lol</TD></TR></TABLE>
Prob too much fuel in addition to fun..

 

we need to see the numbers of the test, then we can see what might be the problem. scan or just post up all the numbers of the test

*edit* the pic was not showing up for me, but its up now

 

SEAFOAM.

 

Try seafoaming it, oil change, and have them check your 02 sensor. If none of them, have them check your cat. Your running rich, that means too much unburnt fuel. What kind of plugs did you put in, did u put em in wrong? are you running OEM wires? is your dizzy ok?

 

update: All it needed to pass was a new air filter