Fuel Pump Relay (Rodeo 3.2L & Trooper)

ECM supplies power to relay as long as ECM receives ignition reference signals or starter crank signal. To run fuel pump without starting engine, remove relay and jumper terminals No. 2 and 4. See Figure and Figure .
To test relay, use jumper wires to ground terminal No. 4 of relay and apply battery voltage to terminal No. 2 of relay. Using ohmmeter, check for continuity between relay terminals No. 1 and 3. If continuity is not present, replace relay.

FUEL PUMP PERFORMANCE

Application

Unregulated Pressure psi (kg/cm² )

Regulated Pressure psi (kg/cm² )

Amigo, Pickup & Rodeo (2.6L)

⁽¹⁾⁽²⁾ 43 (3.0)

⁽³⁾ 36 (2.5)

Pickup 3.1L

Not Used

9-13 (.62-.91)

Rodeo 3.2L & Trooper

. ⁽⁴⁾ 41-46 (2.8-3.2)

. ⁽³⁾ 20-35 (1.7-2.4)

⁽¹⁾	With Vacuum Switching Valve (VSV) connector unplugged and pressure regulator vacuum hose disconnected.

⁽²⁾	With pressure regulator vacuum hose connected, 12 volts applied to VSV Blue wire terminal and VSV Black wire terminal grounded.

⁽³⁾	With pressure regulator vacuum hose connected and VSV disconnected.

⁽⁴⁾	With ignition on and vacuum hose disconnected from pressure regulator.