SOMETIMES MY 02 FOCUS 2.0 SPLIT PORT HAS FIRE,FUEL AND COMPESSION BUT WONT START AS IF ECM WASNT WORKING. DO YOU HAVE ANY IDEAS?

SOURCE: do i have a vapor lock

Remove the gas cap when it does this. If you hear a woosh sound the tank vent isn't working properly. Essentially your tank has turned into a vacuum.

SOURCE: crankcase capacity for 2003 ford focus 2.0 liter split port engine

Hi,

To my knowledge, a 2003 Ford Focus 2.0 SPi engine would need 4 quarts of engine oil (roughly 3.78 liters). Incidentally, the Ford/Cosworth Zeta/Zetec engine would be needing 4.25 quarts (~4 liters).

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

SOURCE: 02 ford focus se 2.0 split port,at idle would run

the MAF (mass air flow) meter may be faulty, this is typical of the symptoms you are getting. It is just after the air filter in the large bore pipe leading to the inlet on the engine, not a cheap part but you may get one on ebay, just remove and unplug the original and swap it.

SOURCE: serpentine belt diagram 2004 focus split port

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, but I am going ahead and answering it anyway. You may want to Print the Diagrams for future use.

CLICK on the following LINK. It has the Belt Diagrams you will need.
If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!
Again my apologies...
http://www.2carpros.com/car_repair_information/year/2004/make/ford/model/focus/2004_ford_focus_drive_belt_routing_diagram.htm

SOURCE: My 2000 ford explorer has been running great shut

check for relay and roll over switch