1998 BMW 318

Computer problem
1998 BMW 318 4 cyl Two Wheel Drive Automatic 156000 miles

Can some body please inform me of what these codes mean. I went onto the internet and read about three different examples of what they might mean. The car is a 1998 BMW 318TI
P1174 and P0170.
Thanks Anthony
July 13, 2010.

Go to the above link. It might be a crank case vent valve issue. Check this link too:

Dr. Hagerty
Jul 13, 2010.