Acura NSX 1997 Service Manual page 1501

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Fuel Supply System
Fuel Injectors (cont'd)
Replacement
Do not smoke during this work. Keep open flames away from your work area.
1. Relieve the fuel pressure Refer to the 1997 NSX Service Manual, P/N 61SL006 (see page 11-132).
2. Remove the intake manifold covers.
3. Disconnect the connectors from the injectors.
4. Disconnect the vacuum hose and fuel return hose from the pressure regulator.
NOTE: Place a rag or shop towel over the hoses before disconnecting them.
5. Disconnect the fuel hose from the fuel pipe.
6. Loosen the retainer nuts on the fuel pipe and harness holder.
7. Disconnect the fuel pipe.
8. Remove the injectors from the intake manifold.
9. Slide new cushion rings onto the injectors.
10. Coat new O-rings with clean engine oil and put them on the injectors.
11. Insert the injectors into the fuel pipe first.
12. Coat new seal rings with clean engine oil, and press them into the intake manifold.
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