LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (Engine Control System Diagnosis - 1.6L (1 Of 3) (Except HEV)) >> DTC P008B: Low Pressure Fuel Pressure - Too High >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.

■ Visual inspection of fuel line 

  1. Check the fuel line for following conditions:
    • Damage or leaking fittings and seals
    • Bent or restricted fuel line.
  2. Has a problem found in this procedure?

    YES 

    NO 

    • Go to "Check blockage and leakage of fuel line" as follows

■ Check blockage and leakage of fuel line 

  1. Disconnect hose between high pressure fuel pump and fuel pump.
  2. Remove fuel remained in the hose.
  3. Check that air can pass through the hose by blowing air into the hose by air gun.
  4. Has a problem found in this procedure?

    YES 

    NO 

■ Check fuel pressure sensor performance 

  1. IG "OFF".
  2. Engine start.
  3. Measure the voltage between signal terminal of fuel pressure sensor harness connector and ground.

    Specification:  approx. 1.9 ~ 3.2V (in idle)

  4. Is the measured voltage normal?

    YES 

    • Substitute with a known - good FPCM and check for proper operation. If the problem is corrected, replace FPCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Substitute with a known - good fuel pressure sensor and check for proper operation. If the problem is corrected, replace fuel pressure sensor and go to "VERIFICATION OF VEHICLE REPAIR " procedure.