View Full Version : rb20det wont start no spark code 21

06-30-2013, 07:34 PM
I have a rb20det that i just swapped in with a wiring specialties harness it is throwing code 21 on the ecu and there is no spark. Switched ecus to a known working one, swapped ignitor, coils, and cas. checked coilpack harness grounds and they're good :hs:

07-01-2013, 10:18 PM
really no one can help?