Have you had the engine ecm scanned by a competant technition? If not do so and also get the print out of the scan with all engine peramiters and trouble codes current and past history. Did you change the hi pressure pump filter? If not do so, this is located inside the hi pressure fuel canister. You mentioned changing the cap and rotor, how did you set the timing? Did you put the ecm into service mode before adjustment? 10* BTDC is proper for base timing while in service mode. Good luck Al
Supra Beast
Custom 496 MPI HO 425 hp
Custom Teak floor