Engine Performance problem
2000 Ford Ranger 6 cyl Four Wheel Drive Automatic 204000 miles
Have a 2000 Range 4x4r 4.0L SOHC. Runs smooth at both idle and high rpm. But it is throwing codes P0171 and P0174. Freeze frame shows
coolant 170 °F
Are these readings outside of PID parameters? I thought the limit was 10.9% on long term fuel trim.
I am also showing:
Also shows EVAP MON test sequence incomplete
What are banks 3 and 4?
I understood the bank 1 and bank 2 to be the two sides of the engine and when both P0171 and P0174 appear simultaneously that is it more likely due to a fuel delivery issue or a vaccuum leak both of which would affect all cyclinders.
Thanks in advance for your input.
have the same problem?
Thursday, October 14th, 2010 AT 2:16 PM