are there any trick techniques to help pass st. insp.? just came back and failed my CO or CO2. supposed to be about 1.2ish and i had 1.76. replaced everything from cat. converter( high capacity) to full tune up which includes O2, plugs(ngk R), cap n rotor, fuel system tune up w/fuel filter and i only run chevron 93 octane. new gas cap to say the least. i have pulled a code 34(map sensor too low) my snap on scanner tells me to replace the map~and from that code 34 i also received a code 21(tps sensor circuit high). so every once in a while i get a stumble. i unplug both for a few minutes and problems go away for a day or 2. should i replace the map and try to redo the st. insp. i think i have a 3 bar map? where can i get a brand new one? the reason i think i have a 3 bar is that the '92 ty is chipped with supposedly vortech heads,cam,larger turbo blah blah blah. in my oppinion it's heavily modded. much more upgrades i'm not listing. not braggin' either. daily driver so i need it fixed. can you guys please help?