Not exactly what title says. Well maybe. Long story short d16y7 engine. Rebuilt with vitaras eagle hbeams recently put supertech springs aem cam gear. The ecu is a p2n which i think is the wrong one and i thjnk the harness is a vtec harness. Well it runs VERY rich. Soot on sheet rock in garage. Idles rough and really low. Turbo manifold is smoking off all high temp paint. Idles so low tach barely reads. Had code for ect. Someone cut that connector. So i cut connector for vtec wired to ect and fixed it. Now have code for vtec and primary o2 p1166 new sensor power and ground on where it should be. But stil code and runs so rich any ideas? What would cause to run so rich???