Check engine light is on?

Hello thanks for using 2CarPros.

Check for the fault codes 31 and 41 (fig 1)common cause between them is the engine control unit it can be the problem, before that check the fig 2 and fig 3 check the wiring diagram, check the wires connection between ECU and the components throttle position and air flow sensor. Check fig 4 for ECU location which is at passenger compartment.
Fault codes can be erased?And fuel pump is only activated when you jump its relay?
Let us know what happens with you.

Fuel pump only works when you jump the relay?

Hello,

The yellow/green wire is connected to engine air flow meter which switches the circuit opening relay by ground(fuel pump relay)that activates the fuel pump.(Fig 1).
For a fast check (fig 2)turn ignition on engine off place a jumper wire between B+ and FP terminal of engine check connector in the engine compartment, listen fuel pump running sound, if not present connect jumper wire from battery source to FP terminal of the engine compartment check connector. If the pump run, then the problem might be from air flow meter that is not grounding the fuel pump. Relay must be in good condition because when you ground it pump is working.
To check the air flow meter contact which activate the relay by ground use ohmmeter between its pin 1 and pin 2 value must be open circuit, then move the airflow meter flap. Continuity must be read. If it is okay, then check for ground present at air flow meter connector pin 2. If its present then check continuity between pin 1 of airflow meter connector to fuel pump relay connector pin 4.
Hope these tests will help let me know what happens with you.
Thank you
.

Hello,

Please I want you to test the AMF pin 1 and 2 again by using multi-meter resistance beep function, when flap actuated you must hear the beep sound, not actuating no sound.
It seems the wire resistance between relay and AMF is too high 1.8 it must be maximum 0.5 ohm, please replace the wire from relay pin 4 to AMF pin 1.
Please let me know.
Thank you.

Hello,

Then the problem is clear air flow meter defected can't activate the relay for fuel pump.