KevinH2000LSV6
Registered
I own a 2000 Lincoln LS V6 that has been running rough and the service engine light has been staying on and flashing occasionaly. I finaly retieved codes which are P0171, P0174 and P0304. P0171 & P0174 indicate lean condition and P0304 indicates misfire on cylinder 4. Could the misfire code P0304 be occuring due to the other codes P0171 & P0174 ? Where should I start? mass air flow sensor? It does not look like a simple task to check spark plugs and coils on the LS.