Posted by dogwalkin on December 11, 2012 at 05:17:41 from (68.186.143.178):
Ok I know this is off topic but I have tried some of the ranger forums and had no luck. I know you guys won't let me down. My truck is throwing codes p0172 and p0175 which means that bank 1 and 2 are too rich. That usually means that the mass air flow sensor or 02 sensors are acting up. But I have a live data scanner and I am not seeing any abnormal numbers on the sensors. Here is where I hope someone here is a ranger expert. This is a 2000 model truck with the single line fuel pump that puts out the higher fuel presssure. But..... when I put the engine in this truck back in the spring the engine came from a 96. So...... I did not know there was a difference at the time but I did not swap the fuel injectors and they are for the lower pressure system. So after all that my question is could these injectors over fuel because they are not made for the pressure. But even though the computer is picking up a rich condition the truck does not appear to be running rich. The plugs are not black. Other than the light on you would not think there was a thing wrong. It runs fine and has no drivability issues.
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