Personal coilpacks / coil on plugs / COPs: Utilizing the four individual coils from either a 1ZZ-FE or both with the NZ sequence engines this negates the necessity for virtually any igniter(s), spark plug leads, distributor cap and also a rotor button. The fourth-generation 4A-GE engine was made from 1991 https://4age20v39258.ampedpages.com/not-known-facts-about-4a-ge-engine-for-sale-58550580