o2 simulator?

[alex1989]

After removing the cats from my 99 ta i get alot of unburned substance out of the tail pipes most noticeable on humid days or when she is wide open. It looks like water vaper. I have no reason to believe me head gaskets are going. My check engine light is on with the bank 1 sensor 2 o2 censor which is the post cat o2 censor on the driver side. Also egr and air induction codes come up as well. Is a o2 simulator such as the one shown in this link http://fasttoys.net/shop/product_inf...roducts_id=375 going to fix my problem of the unburned substance ? Thanks everyone.

[b.lee]

I had o2 sims on my first 98 z28, Still threw the o2 codes daily. Sometimes the ses wouldn't come on, other times it would. About 70 % ses off / 30 % ses on (I wouldn't buy them again)

Does the car still have stock exhaust w/ cats?

[alex1989]

Yea it has mainly stock exhause i have a flowmaster 80 series on it with the passanger cat eliminated and the driver cat gutted. And also the pinched down 2 foot piece of exhaust under the driver side seat removed and replaced as well.

[Wesman]

The O2 simms don't work, the PCM outsmarts them with the tests it does. Which is why they will work for a while, and then set a code.

Only way to get rid if the code permanently is to have it tuned out with tuning software, such as HP Tuners.

[JoshieDoom]

Frost = 125 bucks.

I think that sums this thread up.

[b.lee]

Or find a friend with EFI Live.
I have a very generous friend with EFI Live who helps me out.
I meet him on his way home from work, throw him $20, and drive away happy.