Hi
I have a 1998 Ford F150 Pickup with the V-6 engine. I am getting three codes P0174 (system too lean on bank 2), P0302 (cylinder 2 misfire), P0303 (cylinder 3 misfire). My truck has a very rough idle, but at times the engine light will go off and the truck will idle perfectly. When the light comes back on it idles rough again.

I have changed the coil pack, spark plugs, spark plug wires, fuel filter but I can't get the light to stay off and get rid of the miss in my truck.

I appreciate any help anyone can give me in advance.
Charles

Did you use the exact Motorcraft spark plugs that came in the truck or some cross-reference plugs? Were spark plugs gapped to specs?

Try cleaning MAF Sensor with specialized cleaner--follow directions on can exactly.

Yes I did clean the MAF Sensor with contact spray and changes the air filter. I also gapped the plugs to the manufacturer specifications.

I appreciate the answer though.

Thank You

If you used contact spray the MAF Sensor was likely destroyed--it requires special MAF Sensor spray.