OK I have a 93 Chevy Camaro with the LT one I have done longtube headers I have deleted the air pump I have deleted the EGR tube I have done a computer chip I have done the heated O2 sensors which are hooked up correctly and getting correct power to them but when I started it’s it was popping constantly and I mean loud I replaced the idle air control valve also the throttle position sensor but still having the popping so I just replaced the OPTi spark have not started it yet any ideas on what else could be causing it I have done a lot of research and And look at a lot of related questions on here but not sure what it could be also I put in new NGK TR55IX plugs gap at 50

 

before you throw parts at it, you should ask the computer what's going on!