Code 55 just means everything is good. What ECU are you running?eat_sleep_kingman wrote:Okay i have a 90 s13, rb20det swap just bought the car. Ran the other day then when i parked it i stalled it. Went back to start it up to drive and it fired then shut off like it ran out of gas. Tried priming the fuel pump, nothing. So i hardwired my fuel pump to a 15amp toggle, pump works perfect. Go to start the car, still no start, getting fuel and spark. I checked the ecu and it was throwing code 55, someone please help im new to these 240s, still love it tho..update on the car...my cas works i turned it by hand and my coils fired, just still no injector pluse but 12v to the harness. Raining today but im leaning towards a rigged up wire coming loose under my fuse box from previous owner. The better question is.. does my fuel pump relay control my injector pluse as well as the fuel pump??? Any help is highly appreciated
If you aren't getting injector pulse, you also aren't getting fuel. Your fuel pump relay shouldn't control anything except your fuel pump.
I'd definitely look for some loose wiring somewhere. I'm not too familiar with RB engines though. Do you know if the wiring is professional (like a harness from Wiring Specialties), or is it hacked?












