Contents Wiring diagrams Section: Testing & Diagnostics All sections

Fuel Supply System (V6): Other Honda Accord VIII

Testing & Diagnostics 10 illustrations ~892 words

Fuel Pressure Relieving

Before disconnecting fuel lines or hoses, relieve pressure from the system by disabling the fuel pump and disconnecting the fuel line/quick connect fitting in the engine compartment.

Scheme 335

Scheme 335: With The HDS

Scheme 336

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Scheme 338
  1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
  2. Turn the ignition switch to ON (II).
  3. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING»(ref-423675-S13110687632011092800000) ).
  4. Turn the ignition switch to LOCK (0).
  5. Remove the fuel fill cap to relieve the pressure in the fuel tank.
  6. Turn the ignition switch to ON (II).
  7. From the INSPECTION MENU of the HDS, select Fuel Pump OFF, then start the engine, and let it idle until it stalls. NOTE: Do not allow the engine to idle above 1, 000 RPM or the ECM/PCM will continue to operate the fuel pump. Pending or Confirmed DTC may be set during this procedure. Check for DTCs, and clear them as needed (see «HDS CLEAR COMMAND»(ref-423698-S33409657662011092800000) ).
  8. Turn the ignition switch to LOCK (0).
  9. Do the battery terminal disconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(ref-423695-S16071056072011092800000) ).
  10. Remove the cover (A) and quick-connect fitting cover (B) (see «FUEL LINE/QUICK-CONNECT FITTING REMOVAL»(ref-423686-S08987606702011092800000) ).
  11. Check the fuel quick-connect fitting for dirt, and clean it if needed.
  12. Place a rag or shop towel over the quick-connect fitting (A).
  13. Disconnect the quick-connect fitting (A): Hold the connector (B) with one hand, and squeeze the retainer tabs (C) with the other hand to release them from the locking tabs (D). Pull the connector off. NOTE: Be careful not to damage the line (E) or other parts. Do not use tools. If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily. Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.
  14. After disconnecting the quick-connect fitting, check it for dirt or damage (see step 5 .
  15. Do the battery terminal reconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(ref-423695-S16071056072011092800000) ).

Scheme 339

Scheme 339: Without The HDS

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Scheme 342
  1. Remove the driver's dashboard lower cover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(ref-423709-S13079605252011092800000) ).
  2. Remove PGM-FI main relay 2 (FUEL PUMP) (A) from the driver's under-dash fuse/relay box.
  3. Start the engine, and let it idle until it stalls. NOTE: If any DTCs are stored, clear and ignore them.
  4. Turn the ignition switch to LOCK (0).
  5. Remove the fuel fill cap to relieve the pressure in the fuel tank.
  6. Do the battery terminal disconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(ref-423695-S16071056072011092800000) ).
  7. Remove the cover (A) and quick-connect fitting cover (B) (see «FUEL LINE/QUICK-CONNECT FITTING REMOVAL»(ref-423686-S08987606702011092800000) ).
  8. Check the fuel quick-connect fitting for dirt, and clean it if needed.
  9. Place a rag or shop towel over the quick-connect fitting (A).
  10. Disconnect the quick-connect fitting (A): Hold the connector (B) with one hand, and squeeze the retainer tabs (C) with the other hand to release them from the locking tabs (D). Pull the connector off. NOTE: Be careful not to damage the line (E) or other parts. Do not use tools. If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily. Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.
  11. After disconnecting the quick-connect fitting, check it for dirt or damage (see step 5 .
  12. Do the battery terminal reconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(ref-423695-S16071056072011092800000) ).

Fuel Line/Quick-Connect Fitting Precautions

The fuel line/quick-connect fittings (A, B, C, D, E, and F) connect the fuel joint hose (G) to the fuel feed hose (H), the fuel feed hose to the fuel line (I), the fuel line (J) to the fuel tank unit (K), the fuel vapor line (L) to the EVAP canister (M), and the fuel tank vapor recirculation tube (N) (PZEV model, and fuel fill neck tube (O)) to the fuel fill pipe (P). When removing or installing the fuel feed hose, the fuel tank unit, or the fuel tank, when disconnecting/connecting the quick-connect fittings, pay attention to the following

Scheme 343

Scheme 343: Fuel Line/Quick-Connect Fitting Precautions

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  1. The fuel feed hoses, fuel line, and quick-connect fittings are not heat-resistant; be careful not to damage them during welding or other heat-generating procedures.
  2. The fuel feed hoses, fuel line, and quick-connect fittings are not acid-proof; do not touch them with a shop towel that was used for wiping battery electrolyte. Replace them if they come in contact with electrolyte or something similar.
  3. When connecting or disconnecting the fuel feed hoses, fuel line, and quick-connect fittings, be careful not to bend or twist them excessively. Replace them if they are damaged.

A disconnected quick-connect fitting can be reconnected, but the retainer on the mating line cannot be reused once it has been removed from the line. Replace the retainer when

  1. replacing the fuel rail.
  2. replacing the fuel line.
  3. replacing the fuel pump.
  4. replacing the fuel filter.
  5. replacing the EVAP canister.
  6. replacing the fuel fill pipe.
  7. replacing the fuel tank.
  8. it has been removed from the line.
  9. it is damaged.

Use the same manufacturer retainer and the same size when the replacing the retainer.

LocationManufacturerRetainer colorLine diameter
ATokaiBlue green0.3 in (8 mm)
BTokaiBlue green0.3 in (8 mm)
CTokaiOrange0.4 in (9.5 mm)
SanohWhite
DTokaiNatural0.5 in (12 mm)
ETokaiNatural0.5 in (12 mm)
F (PZEV model)TokaiGreen1.1 in (28.6 mm)

RETAINER INFORMATION