1999 Mazda b2500 Repair Question
Topics covered: Fuel pressure, Sensor, Fuel filter.
Mileage: No information provided.
Mileage: No information provided.
Asked on July 29, 2011
1999 mazda b2500 or ford ranger
I have a 1999 mazda b2500 with the code po 171 system too lean bank 1 I canged the fuel filter and checked fuel rail pressure it was 39 could it be the fuel pump or fuel pressure regulator or intake gaskets
Asked by grantgilderAnswer
Replied on July 29, 2011
http://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers
Lean fuel condition could be caused by one of the following below:
1.Vacuum leaks
2.EGR and PCV valve.
3.Low fuel pressure.
4.Dirty fuel injectors.
5.Mass Air Flow Sensor.
6.Oxygen Sensor.
