: Code Question for a 2000 deville north*.

07-12-05, 07:18 PM
What does the code p0174 stand for. i have an idea that it mean lean fuel. what can be done to fix this problem. Should i clean the egr valve?

07-12-05, 10:15 PM
For future reference, you can always look up OBD-II codes here:


The P0174 is "Fuel Trim System Lean Bank 2," and I'm sure someone will chime in with good advice on what to do to troubleshoot and/or fix it.

Good luck...

07-15-05, 06:46 PM
so does anyone have any idea what i can do to fix this problem