Been a while since i have posted but i am truly stumped. About 2 months ago i passed ca emissions just fine. Told i could of tripled my pollution and still passed. But for the past 2 yrs i get the stumble issue. I have done all the classic suggestions. Cap, rotor, coil, wires, FPR, Pump, Filter, timing. But its driving me nuts at this point. Also have replaced CTS, ACS,Thermostat,IAC, and TPS. Checked the timing and it was at 6* put it back at 10. Helped some with stumbling but it came back. Pulled codes KOEO 11,10,33,96. KOER 8,10,44,33,77,74,65. Considering a bottle of 0w synthetic(No thermal breakdown while im being [email protected]%*) and a trip to Ford with it.