Acura TSX / Honda Accord CL. Manual - part 498

Fig. 41: Connecting Fuel Line/Quick-Connect Fitting (Existing Retainer) 

5. Make sure the connection is secure and that the tabs are firmly locked into place; check visually and by 

pulling the connector. 

 

2004 Acura TSX 

2004 ENGINES Fuel Supply System - TSX

  

 

Fig. 42: Checking Connection 

6. Reconnect the negative cable to the battery, and turn the ignition switch ON (II) (but do not operate the 

starter motor). The fuel pump will run for about 2 seconds, and fuel pressure will rise. Repeat two or three 
times, and check that there is no leakage in the fuel supply system.  

FUEL PRESSURE REGULATOR REPLACEMENT 

1. Remove the fuel pump (see FUEL PUMP/FUEL GAUGE SENDING UNIT REPLACEMENT ).  

2. Remove the clip (A). 

 

2004 Acura TSX 

2004 ENGINES Fuel Supply System - TSX

  

 

Fig. 43: Removing The Fuel Pressure Regulator 

3. Remove the fuel pressure regulator (B).  

4. Install the regulator in the reverse order of removal with new O-rings (C). Make sure the regulator is 

installed with the drain hole (D) facing down.  

FUEL FILTER REPLACEMENT 

The fuel filter should be replaced whenever the fuel pressure drops below the specified value (see FUEL 
PRESSURE TEST ), after making sure that the fuel pump and the fuel pressure regulator are OK. 

1. Remove the fuel pump (see FUEL PUMP/FUEL GAUGE SENDING UNIT REPLACEMENT ).  

2. Remove the fuel filter set (A). 

 

2004 Acura TSX 

2004 ENGINES Fuel Supply System - TSX

  

 

Fig. 44: Removing Fuel Filter 

3. Check these items before installing the fuel tank unit: 

z

When connecting the wire harness, make sure the connection is secure and the connectors (B) are 

 

2004 Acura TSX 

2004 ENGINES Fuel Supply System - TSX