LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Basic Diagnostic Procedures >> Fuel System >> Fuel Pressure (B2300, B3000, B4000 & Tribute) >> Fuel Pressure Hold Inspection

Fuel Pressure Hold Inspection

NOTE: Fuel pump will only operate for about 8 seconds when Output Test Mode is selected and activated.

Release fuel pressure. See FUEL PRESSURE RELEASE  . Install fuel pressure gauge. Turn ignition switch on. Connect scan tool to DLC. Select PCM, active command modes, output test mode and fuel pump PID. Press MODE to change to ALL ON mode. Press START, to run fuel pump. Turn fuel pump relay off and observe fuel pressure. Wait one minute. If fuel pressure reading is within 5 psi of previous pressure reading, fuel system is okay. If fuel pressure drops more than 5 psi, inspect fuel injectors for leaks. See Injector Fuel Leakage Inspection  .

scientia non olet · About LEMON Manuals