Are those two computers compatible with the same vehicle?
Did you check for applicable mil codes? You can do that yourself. You cycle the key, no crank, just turn key till dash lites come on. On--off, on--off, on, then the mil starts flashing, you count the flashes to get the codes. Your looking for two digit codes.
At the ignition coil, the black wire with red tracer should be hot with engine cranking, is it?
"A digital signal constant lite", from where?
Thursday, June 23rd, 2011 AT 7:34 PM