SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMAZDA2008CX-7 TOURING, 2.3 3, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEMHIGH PRESSURE FUEL PUMP INSPECTION[L3 WITH TC]
2008 Mazda CX-7 Touring, 2.3 3, AWD

High Pressure Fuel Pump Inspection[L3 With TC]

2008 Mazda CX-7 Touring, 2.3 3, AWDSECTION High Pressure Fuel Pump Inspection[L3 With TC]
NOTE:
  • Perform the following inspection only when directed.
  • The following vacuum values are indicated by relative pressure from the fuel pressure sensor.
  1. Verify that the fuel pressure sensor is normal. (See FUEL PRESSURE SENSOR INSPECTION[L3 WITH TC] ).
  2. Connect the M-MDS to the DLC-2.
  3. Turn the ignition switch to the ON position (Engine off).
  4. Select the FUEL_PRES, and LOAD, RPM PIDs on the M-MDS.
    CAUTION:
    • If the engine is run at a high speed, it could be damaged. When racing the engine, do not race it up to 6,700 rpm or more.
      Fig 1: Identifying DLC-2 Connector
      G04859659Courtesy of MAZDA MOTORS CORP.
  5. After the LOAD PID is 60% or more  while the engine is raced with the accelerator pedal fully depressed, verify that the FUEL_PRES PID is approx.11.5Mpa. 
    • If not as verified, replace the high pressure fuel pump.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.