1994 Nissan Quest

Engine Performance problem
1994 Nissan Quest 6 cyl Front Wheel Drive Automatic 150000 miles

There is fuel in our oil. We were told it could be an O2 sensor. It also uses alot of gas. It also tries to die once it warmed up.
Melanie Riggs
January 10, 2009.

There are a variety of reasons for fuel to be so rich. O2 sensor is one, coolant temp sensor is another as is a fauty fuel presure regulator.

See if you can have the codes in the computer read and post them here.