It has the 2.3 L engine and I have been told it should be between 35-40 at idle but shouldn't it rise while driving? Mine is between 30 and 40 psi while driving, and I am wondering if this is too low? I am experiencing a loss of power when on a slight hill, and also when I put it in 4th or 5th gear anyone know what the fuel pressure is suppose to be while driving? I have already changed the fuel filter, changed a bad coil pack, checked all sensors. please help!