Integra L4-1590cc 1.6L DOHC FI (1987)
Fuel Pressure: Testing and Inspection
1.
Relieve fuel pressure, refer to ``Relieving System Fuel Pressure'' procedure.
2.
Remove service bolt on top of fuel filter and attach a suitable fuel pressure gauge.
3.
Start engine, then measure fuel pressure with engine idling and vacuum hose of pressure regulator disconnected. Pressure should be 36-41 psi.
4.
If fuel pressure is not as specified, check fuel pump for proper operation. Repair or replace as required.
5.
If fuel pump is satisfactory and fuel pressure is higher than specified, proceed as follows:
a. Check for pinched or clogged fuel return hose or piping.
b. Check for defective pressure regulator.
6.
If fuel pump is satisfactory and fuel pressure is lower than specified, proceed as follows:
a. Check for clogged fuel filter.
b. Check for pinched or clogged fuel hose from fuel tank to fuel pump.
c. Check for defective pressure regulator.
d. Check for leak in fuel line.
e. Check for pinched, broken or disconnected regulator vacuum hose.
