infamous california.. failed 15 mph (top row) passed 25 mph (bottom row). they told me it's the cat.

 

hahaha i remember a long time ago a shop told me i needed a cat. i took my car took it to another smog shop and passed with flying colors

 

woww. they did suggest i try sea foam. i've also heard of cataclean. anyway, im trying to sell the car as is right now..

 

Yep, looks the cat is bad. If you decide to keep the car, then give it a tune up and adjust the ignition timing before you buy a new cat.

 

Damn they check timing.
Must suck to live in Cali and deal with the hard emission.
But last time I had high reading I ran a bottle of emission stuff. It was like $9 said something about pass or money back.

 

jaybee: doubt its the cat.. all your emissions would be high. maybe try an o2 sensor


reaperman: you passed when you took it to the other shop probably because the cat was all nice and hot from the prev. shop...(?)

 

nope. before i took it to either shop i raced/abused it before taking it in. and trust me it was a hot day too. both smog shops did it right away as soon as i got there due to there not being anyone else there to smog there cars. and another thing, the reason i left that smog shop was because i had a brand new cat that was about 4 days old..... soooo.................... i only replaced it because my original had taken a dump. it was so original the actual cat looked black, kinda threw me off, kinda looked like someone took a torch to it and burnt it

 

also.. the spark plugs are from my 88 prelude. any chance that throws off emissions? anyone else care to chime in?

 

don't know if they are the same part number but if they are not then they must be a different heat range