Got a 92 hatchback with a b18b pump stopped primping it was driving fine until i got a cel 16 for injector i believe after couple days it stopped priming its wired with a 30a relay from battery. I straight wired bat to pump and it primes. I tried jumping main relay and nothing. I get 12v to the pump clips with relay connected but pump still dont prime. I tried a different ecu and main relay still didnt prime. I cleand grounds and still no prime. I get continuity on the ground to chassis. Anyone had a similar problem to mine. Also got the car wired like that with the 30a relay.

 

have you figured it out if know this is an old thread but I just ran into the same problem