2000 Toyota Tundra 4.7 Fuel Pressure Test

2000 toyota tundra 47L p0441.

2000 toyota tundra 4.7 fuel pressure test. Risk exists of blowing coupler hose off of pump. My 2005 Toyota tundra 47 has a surge type hesitation only at 2000 to 3000 rpm Ive changed the fuel pressure regulator and spark plugs its bout to drive me crazy. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.

Unplugging or adding vacuum mightyvac to the pressure regulator makes no difference. Under acceleration the pressure doesnt move unless I back off quickly then it will jumps to 28-30 psi. Start wnew fuel cap.

14 Feb 14 2018. Misfire When the fuel pressure regulator fails it can allow too much or too little fuel into the engine. A mechanic has a wide range of instruments at his disposal to diagnose what would be causing the P0446 in your Toyota Tundra.

147 kPa 15 kgfsqcm 21 psi or more. A Typical Fuel Pressure Regulator. Hello I am a newbie to this site as well as working on my own vehicles and am using my Tundra as my guinea pig.

And Ive heard numerous trustworthy accounts of a couple of diesel Tundra test mules rolling around Texas. Also may want to check the fuel injector wires individually with a noid light may need to also get fuel pressure checked. It is a constant 22 psi.

May want to try a power balance test with your fuel injectors unplug each one one at a time from the electrical harness kinda the same way you did with the COPS. The purge valve works when the pressure sensor tells it there is enough pressure in the evap system. Its on the left side of the cylinder head right below where the PCV valve is if I remember right.