The problem I'm having is that the fuel pump is wired directly; I mean, when I turn the ignition switch on, the pump starts and doesn't turn off. I'd like to know the wiring diagram for this pump, how it's connected to the relay, and how I can fix this problem. Thank you very much.

What do u mean directly?? if the engine dosnt flood with gas, my guess wuld be fuel pressure regulator just returning the gas in the gastank

32 minutes ago, LeadDiplomat said:

What do u mean directly?? if the engine dosnt flood with gas, my guess wuld be fuel pressure regulator just returning the gas in the gastank

I mean that the pump doesn't stop after 2 or 3 seconds, it stays on all the time, and that's because the previous owner left it permanently on.

Does the car run like that??

1 minute ago, LeadDiplomat said:

Does the car run like that??

Yes, it works, but I want to leave it like new since it could affect other things in the long run.

19 minutes ago, codepass said:

Yes, it works, but I want to leave it like new since it could affect other things in the long run.

Ok so the car works, but that is not a relay issue in my opinion(i know only basic electrics so take this with a grain of salt) what he probably did is that he spliced a triger wire from the ecu to ignition 12 volts, prob becouse of ecu issue. What u can do is try and find where he spliced in(def a dashboard out job) and add a basic switch so u can manualy control the priming of the fuelpump(race car style 😉), or rewire the trigger wire back to the ecu and chase the accual issue. As for the manuals have u checked malualslib or scribid?

1 hour ago, codepass said:

because the previous owner left it permanently on.

Maybe he connected legs of relay. Can you hear pump relay disconnecting after couple of seconds? Or maybe there is no relay just jumper.

12 minutes ago, LeadDiplomat said:

Ok so the car works, but that is not a relay issue in my opinion(i know only basic electrics so take this with a grain of salt) what he probably did is that he spliced a triger wire from the ecu to ignition 12 volts, prob becouse of ecu issue. What u can do is try and find where he spliced in(def a dashboard out job) and add a basic switch so u can manualy control the priming of the fuelpump(race car style 😉), or rewire the trigger wire back to the ecu and chase the accual issue. As for the manuals have u checked malualslib or scribid?

Thank You for answer, i'll do that

8 minutes ago, kokosal said:

Maybe he connected legs of relay. Can you hear pump relay disconnecting after couple of seconds? Or maybe there is no relay just jumper.

I can't hear the relay clicking, but there is a relay in the fuse box, and I tested it externally and it's good, so I've concluded that I either need to take it from the ECU cable or from under the steering wheel.