I have a convertible 1988 rx7. Racing beat header and dual exhaust. Kept mid cat for exhaust pressure return tube. Emissions properly removed and blocked off. No check engine light only emissions codes when ran under computer. Car runs great at start. A/f may have been tampered with and tps adjustment bolt as well after emissions removal to keep alive just not done correctly. Any help on tps settings or volts a/f check and adjustment or any solution would be great I can't find anything