Originally Posted by
shirohige
Long story short: 200sx s13, ca18det. swapped to sr20det. Was working fine. Pulled some things out like both manifolds, IC piping, put on a bigger turbo (s15) and 555cc injectors. Injectors are leaking most likely, so I put back my stock ones (370cc) and a Power fc d-jetro (map sensor).
So, replaced everything i needed to replace. Had some problems at first like not revving past 2k, but that was most likely too much air in my coolant. After I fixed that it would rev to 4.5k and then it would feel like launch control (popping from exhaust). Had this problem for a month or so. Today I thought; you know what? lets hook up my stock ecu and see what happens. I extended the maf wiring since I got a new harness (changed the pinouts on the small plugs) and hooked up my MAF.
Fuel pump priming, and I wanted to start the car andddddddddddddddddd nothing. It only cranks. There is voltage on the coilpacks. I don't even think it has to do something with my injectors, sparkplugs or coil packs. It is working fine with my apexi power fc. Checked the stock ecu for codes and I got code 55, so nothing is wrong I guess. Even if the maf is hooked up wrong it should start but should run crappy right?
Why does my aftermarket ECU works, but my stock ecu not? The stock ECU was always working fine.
edit; it isn't getting any fuel. Injectors are not firing with stock ecu, but somehow work with aftermarket ecu.....