Recently I noticed my car running like crap, it had also been making an exceptionally foul odor from the exhaust. not having time to check what was up I parked it and began driving my Taurus. After consulting a few mechanics and getting a lot of mixed answers i thought i'd come back home on the Org. Anyway, back to the point, the symptoms:

- Lots of white smoke from the exhaust but only after the car warms up.
- Oil smells like gas
- Engine miss

The odd things:
- Coolant in radiator and reservoir are fine
- Oil was slightly low, though not enough to make a difference

Work done in the last 3 months:
- 3 new injectors and coil packs in the rear bank
- Throttle body, EGR, IACV, and Intake cleaned
- 6 new NGK Iridium Spark plugs

Mechanics weren't sure but wanted to do Heads and Gaskets, I think an injector may be leaking into the oil and possibly destroying a piston ring or two seeing as two cylinders still weren't firing...Any help is appreciated before the car is sold, maybe a Max can be saved...

 

White smoke usually means a coolant leak into cylinder via bad head gasket. Do a cooling system pressure test; can rent/borrow equipment at Advance/Autozone.

 

Plugged cat. Eccesive back pressure = more blow by into crankcase and crappy running.
Bad cat smells like rotten eggs.

 

That sounds like either blown head gasket or cracked cylinder head.