2012 Ford Fusion 2.5L Automatic. Starts initially and shuts back down immediately. When it does run it misfire severely and back fires in intake. Getting fuel and spark and 170 lbs of pressure at each cylinder at about 7 "puffs". No check engine light and no codes at all. What now? New cam and crank and mass air flow sensors, too. They are all good.
You have a mechanical problem,There is no sensor that can do this, Running out of fuel can do this,A cam and crank that is not synchronized can do this,Try this remove the variable timing actuator,clean out the port with brake cleaner,install and restart,
SOURCE: Have a 2003 Taurus, 3.0 engine that has a misfire
did you check the injector pulse on that cylinder and it also could be the pcm , i had a taurus and a sable with good coils stop firing 2 cylinders and it was the pcm ,the code it gave was secondary coil but changed the pcm and it worked fine
SOURCE: 2002 Ford Ranger check engine light indicating misfire
Code P0301
Ignition Coil Pack
Ignition Cable
Spark plug
Clog or dirty fuel injector
Evap canister purge valve
Engine Compression
fuel pressure
you have 3 type of engine for your truck
2.3L 4 cylinder
3.0L 6 Cylinder
4.0L 6 Cylinder
need to know that type Engine
The reason why the service light come on because it is a hard code
not a soft code.
Let me know
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I dont think that Chuck, tripltauto, or Chris has thoroughly read my post.
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