10-04-2011, 01:41 PM
I did an spi to zetec engine swap. The engine runs fine there's no engine codes I had an emission test done, the readings were what i'd expect from a brand new engine which it basically is. (4500 km on it) Had an O2 sensor go so i changed it. Anyone have any ideas what it could be. My grandfather has the same car/ engine and gets 600 km to a tank. My car get's 400 km to a tank. I'm easier on my car than my grandfather. Anyone have any ideas.
10-04-2011, 01:44 PM
what plugs are in there? air filter clean?
10-04-2011, 01:51 PM
Air Filter was brand new, and plugs/ wires were also new.
10-04-2011, 04:20 PM
How are you determining your mileage? I have two different foci, and the low fuel light comes on when different amounts are left in the tank. Both cars get nearly same mileage, but one will go amost a hundred miles longer before the low fuel light comes on.
10-04-2011, 04:45 PM
they might be new plugs but are they motorcraft plugs? i heard they work the best. i dont use them personally... lol
10-04-2011, 05:18 PM
the wires r motorcraft so in all likelihood the plugs r as well. I'm thinking it's the coil as it's from the spi motor (had 320k km on it).
10-04-2011, 05:23 PM
i didnt even know they were interchangeable..
10-04-2011, 09:14 PM
They are indeed the exact same had an spi and zetec coil side by side. Unfortunately the zetec one i did have had 450K km on it so it wasn't of much use.
10-04-2011, 09:58 PM
I would definitely replace coil and clean the MAF
10-05-2011, 05:54 AM
I wouldn't replace anything until you calculate the actual fuel mileage (or fuel kilometers, which just sounds weird). This nonsense of 300km to a 'tank' give no basis to how many liters of fuel have actually been used, simply that you've traveled 300km's.
10-05-2011, 06:30 AM
make sure the plugs aren't bosch platinums either.