 2000 Ford Focus Se- check engine light/coolant
Thank you for your knowledge. I will be performing an coolant flush once I try to solve my engine light issue.
I hooked up my car to a obd2 meter. I received a PO171-Engine adaptive fuel too lean bank 1. The guys at the auto parts store suggested. Changing the plugs (i did this just 10k miles before), new spark plug wires (still have factory motorcraft), o2 sensor (factory one still in it), and maybe pcv valve. They showed me where everything is on the engine except they couldn't find the pcv valve. About 10k miles ago I did add a "fuel" add to a full tank of gas.
Where do you think i should start? | 
