Hello, I just picked up my first Honda. Test drove it and said I'll take it. Got home and parked it, went out the next morning and it won't start. I have been fighting it for a week now. first thought was ran it out of gas. put 4 gal in, no start. found no spark, no noid. pulled dist cap and had a crap load of oil in there and replaced it with a new one. No start. no spark, no noid, blinking S. Jumped service connector and the s light codes were 1,2,7,8, and 14. No check engine lamp blinking. Checked all wires from dist to connector on right strut tower, checked ok. Checked wires from strut tower to ecm, checked ok. I thought maybe I got a defective dist and swapped it out for another, still nothing. now it gets weird, The LED on the TCM blinks bright, The LED on the ECM wasn't coming on and sometimes it was dim, sometimes it looked ok. Checked voltage at the #1 injector plug and found the voltage jumping all around from 3.4v to 5.1v, then let it sit for a minute and I would get 12.5 or more volts. I go to try and start it and still get no noid. Checked Injector resistor and was ok. Found out about The main relay and went and grabbed a new one. no start. Last night it started and ran ok but i had #1 injector unplugged and #1 wire unplugged shut it off to plug it back in and restart, have spark but no noid. any help appreciated sorry for the long first post.

 

Could be a bad ground for the ECM.

 

sounds like the tcu or ecu is done. check those codes