I recently acquired a consult -> USB cable and discovered Code 21: Ignition Signal Circuit. Im from the USA and i put this rb25det neo into an s14. Im running the car on a Stagea R34 Automatic ECU. I did a search on the forum and did read some other threads with a similar problem, but none helped. The motor has been running for a few weeks, but I cant get cylinder 1 to fire. I rotated the coils and plugs around so thats not the problem. Power voltage to coil 1 is your normal 12-13.5V, but the trigger voltage was only .3V (all other coils were ~.8V). I know my problem is either in the ECU or Wiring Harness, but i also read a thread on here where someone had a bad ground? Should i test the continuity to coil 1?
What do you guys suggest. Ive pretty much tried everything I can think of. I dont have access to try someone elses ECU or Wiring harness, as there are only a handful of these motors in my entire country. How often do these ECUs go out? I tried to test the voltage coming out of the Ignition Signals to each coil (directly on the ecu), but I couldnt get a reading for the life of me. Besides this one problem, the motor starts, idles, and drives as good as it gets (with 5 cylinders that is).
Please help me out here gents!