Onvehicle Inspection

1. CHECK FUEL PUMP OPERATION

(a) Turn the ignition switch ON. HINT: Do not start the engine.

(b) Using SST, connect terminals + B and Fp of the check connector.

SST 09843-18020

(c) Check that there is pressure in the fuel return hose. HINT: At this time, you will hear fuel return noise.

(d) Remove SST. SST 09843-18020 (el Turn the ignition switch OFF. If there is no pressure, check the following parts:

• Fusible links

• Wiring connections

2. INSPECT FUEL PRESSURE

(a) Check the battery voltage above 11 volts.

(b) Disconnect the cable from the negative ( —) terminal of the battery.

Disconnect the cold start injector connector.

Disconnect the cold start injector tube.

• Place a suitable container or shop towel under the cold start injector tube.

• Remove the union bolt and two gaskets, and disconnect cold start injector tube.

HINT: Slowly loosen the union bolt.

Cold

Injector Connector

Remove the cold start injector tube.

• Place a suitable container or shop towel under the cold start injector.

• Slowly loosen the union bolt of the cold start injector tube and remove the bolt and two gaskets from the cold start injector.

• Remove the union bolt, fuel tube and two gaskets.

Remove the cold start injector. (See page FI-78)

Install the gasket and cold start injector with the bolts without connecting the cold start injector connector.

(h) Install SST (pressure gauge) to the delivery pipe with new two gaskets and union bolt.

SST 09268 45012

(i) Wipe off any splattered gasoline.

(j) Reconnect the battery negative (—) cable.

(k) Using SST, connect terminals + B and Fp of the check connector.

SST 09843-18020

(I) Turn the ignition switch ON.

(m) Measure the fuel pressure.

Fuel pressure: 7M-GE

2.7 - 3.1 kg/cm2 (38 - 44 psi, 265 - 304 kPa> 7M-GTE

If pressure is high, replace the fuel pressure regulator. If pressure is low, check the following parts:

• Fuel hoses and connection

• Fuel pressure regulator (n) Remove the SST.

SST 09843-18020

(o) Start the engine.

(p> Disconnect the vacuum sensing hose from the fuel pressure regulator and plug the hose end. (q) Measure the fuel pressure at idling.

Fuel pressure: 7M-GE

2.7 - 3.1 kg/cm7 (38 - 44 psi. 265 - 304 kPa) 7M-GTE

(r) Reconnect the vacuum sensing hose to the fuel pressure regulator. <s> Measure the fuel pressure at idling.

Fuel pressure: 7M-GE

2.1 - 2.6 kg/cm2 (30 - 37 psi. 206 - 265 kPa) 7M-GTE

If pressure is not as specified, check the vacuum sensing hose and fuel pressure regulator.

(t) Stop the engine. Check that the fuel pressure remains 1.5 kg/cm2 (21 psi, 147 kPa) or more for 5 minutes after the engine is turned off.

If pressure is not as specified, check the fuel pump, pressure regulator and/or injector.

(u) After checking fuel pressure, disconnect the battery negative { —) cable and carefully remove the SST to prevent gasoline from splashing.

SST 09268-45012

Disconnect

Connect the cold start injector tube with new gaskets and the union bolt.

Connect the cold start injector connector.

Remove the cold start injector. (See page FI-78)

Install the cold start injector. (See page FI-80)

Install the cold start injector tube.

• Install the cold start injector tube to the delivery pipe and cold start injector with new gaskets and the union bolts.

Torque:

Delivery pipe side

300 kg-cm (22 ft-lb, 29 N-m) Cold start injector side

(aa) Reconnect the cable to the negative ( —) terminal of the battery.

(ab) Check for fuel leakage.

7M-GTE

7M-GTE

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