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Hello, have you checked for any diagnostic codes? Any trouble codes? Is there voltage at the B+ terminal of the check connector? Does the check engine light turn on with the key on?
If you were able to get codes the B+ voltage is ok. code 12 is a loss of RPM signal, sorry for all these questions that may be something you've already done.
Is there 12 volts at the be plus side of the coil? Is there voltage to one wire on each injector? Voltage to the igniter?
Is it the 3SFe or the 5SFe engine?
hello, I have to be offline for about 4 hours, let me know if you still wish to continue, I'll check back with you later.