my car wont start.i thought i had a bad filter so i changed it. when i turn the key forward the pump pressurizes but when i check for pressure by pushing down the little valve on the fuel rail it squirts and stops nothing comes out afterwards. i turn the key back then forward again and the same thing. what does that mean?it shooting trouble codes 33 34 ? but i just bought a new maf sensor what is the deal??????????

 

I have the same thing wrong. I hooked up a pressure guage and read around 40 psi. Could you have good fuel pressure and still have a bad pump, or filter?????

 

Take a fuel pressure gauge and check fuel pressure, if its really low then a new fuel pump is order. Im having to do that right now, my fuel pump will pressurize and bleed off quickly. Replacing it tomorrow, yippee.

 

Check and make sure the MAF sensor is getting the 12V it needs. The fuel pump relay could be faulty.