'89 Civic 1.5L M/T
Success!
I tapped a on/off switch into fuse 14 (cuts off the whole main relay as well as several vacuum/emissions valves all over the engine.)
I took it out for a test drive and it works GREAT. No crazy error code from the ECU, just the check engine light stays on until I bump-restart. A very pleasant affair, really.
I want to run one more wire to ground the switch (so the switch LED comes on!), and I also have to verify that I have tapped into the wire AFTER the fuse. If my circuit fails, I want it to be properly fused so it doesn't start a fire. Then it'll be done.
On with the
ing!!