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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 06-30-2009, 06:06 PM   #1
spartanic
Leaky Injector
 
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Nissan 240sx 1989-1994 S13 Fuel System: rails, injectors pumps and more

Click on the link to see the complete article with images check it out here: Nissan 240sx Fuel System S13: rails, injectors pumps and more. Garage411.com


CAUTION: Always relieve fuel pressure before disconnecting any fuel injectionrelated component. DO NOT allow fuel to contact engine or electrical components.


FUEL SYSTEM PRESSURE RELEASE

1. Remove fuel pump fuse.
2. Start engine and allow to run until fuel is exhausted and engine stalls. Crank engine an additional 2 or 3 times to verify all pressure has dissipated. Turn ignition off. Install fuel pump fuse or relay.

FUEL PUMP REMOVAL AND INSTALLATION

Fuel pump is located in fuel tank. If vehicle is not equipped with a maintenance access cover for fuel pump service, remove fuel tank.

Release fuel pressure (see top). Disconnect negative battery cable. Remove maintenance access cover. On models without a maintenance access cover, remove fuel tank. Disconnect fuel lines and wiring harness connector. Remove fuel pump mounting bolts. Remove fuel pump from fuel tank. To install, reverse removal procedure.


FUEL RAILS AND INJECTORS

Removal
Release fuel pressure (see top). Disconnect negative battery cable. Remove EGR backpressure transducer valve (Pickup). Disconnect fuel inlet and return lines. Remove fuel rail retaining bolts. Remove fuel rail and injectors as an assembly. Remove injectors from fuel rail.

Installation
Clean exterior of fuel injector. Install NEW "O" rings on fuel injectors. Install injectors and fuel rail. Install EGR backpressure transducer valve. Pressurize fuel system and check for leaks.



Click on the link to see the complete article with images check it out here: Nissan 240sx Fuel System S13: rails, injectors pumps and more. Garage411.com
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