ive had my iroc-z for a yr now drove it 3000 miles in 6 months and its showing wierd signs. well i took t he cat off and the exhaust is so acidic it burns my eyes and makes em water(i changed the maf sesor nothing) also sometimes there seems to be a miss sometimes theres no miss i think its running rich ill have ot take it to get checked on the scan tool or whatever. it ran a 15.6 with a 2.3 60ft after 100 plus miles thats almost what they ran off the show room floor so i cant imagine it bieng anything really bad or performance robbing just annoying it is. dosent burn oil smokes during the winter a little bit specially after it is reved if it was coolant it would be thick white smoke i dont think its burning coolant. please help no milky oil is for sure

 

well takin the cat of would prob. do that to the exhaust. u might wanna try and replacing the O2 sensor...i dont think its that much and it should help some w/ the being rich problem

hope that helps

 

Ditto on the 02 sensor, also if you have an AFPR, but off the fuel pressure a couple of pounds..