Mach 1

Here is part I replaced along with aftermarket coil..Shop replaced IAC, which was weird since I had zero miles on one I put in, initial issue was wouldn't keep running without throttle, got it back and second ride blew fuse, died and now it sits..thanks

In the ECM pic, you see that blue Square sticking up with no connector on it?? Thats the relay I replaced that clicks when you turn on the key.

Ok, makes sense now, connector on fuel pump relay is one I should test..thanks.

I did measure first connector from left, both solid green read continuity, green / black..nothing. In resistance, back/ green..nothing, already feel retarded..oh, my bad, not a correct statement..challenged.

In this pic, is harness disconnected the stop relay??

Oh so confused already, including pics, not sure where components are with wiring, sorry retro, in this pic, which one is stop relay?

Please accept my apologies, its hunting season and getting down to crunch time..BUT, rain coming so tomorrow gonna get on it..got a new multimeter and printed out all of retro test..told him I noticed though I lost my dash display, headlight still worked so definitely a gremlin.

Ok, got it..dang if I don't feel like back on a submarine doing contunity checks on Trident missile umbilical! Gonna take Mach out of garage and move in this POS for disassembly..great idea on stripping her down, got tired of wasting money throwing parts at it and it just got worse, went from a blown fuse to no power at all, thanks again , will start on it tomorrow.

In thispic what are these 3 things, I have ablue fuel pump relay, big square, is engine stop relay somewhere below all this ??

Also, after each test do I reconnect the component removed before moving on the next test?

Wow!! Will do, in well that fuel pump relay sits, there are 3 black squares with lids, is one of them the engine stop relay?? Also, is the PCM under the cover in the back below where rear tail lamp is? I am gonna print this and take it outside with me tomorrow, guessing coil and fuel pump relay being disconnected will not affect any readings? Thanks for working with me, really appreciate it !!

I put in cart, coil, cap, diode and #14 relay on standby, though none of those don't mean squat with no key/dash.

Ok, thanks

Those 2 parts removed, big issue now is no power to dash, so coil, relay on standby, don't think they are needed to at least have powe to turn on lights, which originally wasn't my issue, issue was ignition fuse blowing, now escalated too dash, fuel pump etc power.

Update: Battery voltage 13v, at main 30 A fuse, 13 V, disconnected connection from positive battery to fuse box, 13 V so, can it be either key or start/stop switch assembly? I have power everywhere except to key/dash.

Sorry, I put both those numbers in there search and come up empty, been having that issue for OEM, what could have happened while I was sitting in house that with key on with no coil or relay connected and a good battery, turn key on and no power anywhere? Don't see how that is a non oem part issue, like I just loss power with key on sitting inside lol

Ok, just unhooked battery, tested at 13.2 V, with charger hooked up, 16v..still don't get why one minute gave dash, power, fuel pump, etc..come inside, come back out with coil disconnected no power to anything, been throwing parts at it, how could it go to cranking over with no spark to no power with all fuses good?

No, original relay long gone..really hard finding genuine Honda OEM parts for a 2010 😞

How do I test stop relay? Plus what would out of nowhere give me no power anywhere? This is not following basic electrical principles! Thanks.

Yes, have test light and a Fluke.

Ok, taking a cleansing breath lol, disconnected negative, battery charger hooked up, no fuses blown.

Where do I get a NEW OEM coil? Looked everywhere and can't find thats why I went used OEM..button issue is no power with key on anywhere..this is new, only issue was coil blowing fuse..rectifier tested in spec, pretty much everything on it is original, off time kept in a sealed connex box, wires look pristine, really perplexed since I am a car guy and this one throwing curves at me, especially when I come in, go out and new issue crops up..really thank you guys for replies !!

Coil is OEM, I just went back out and battery was now at 3.9 v with key off, hooked up charger, let me say again, original issue was China coil blowing fuse, oem didn't blow fuse but no spark..everything worked, would turn over with full dash but no spark..Turned off key, melted coil, now battery at 3.9 v so hooked up charger.

Where is engine stop relay and why 30 minutes later would I have no power to key to light up dash? Guys, 30 minutes ago I was cranking with full dash and no spark, now nothing with all fuses good ????

Only non honda part is fuel pump relay. Did good inspection of harness, as stated, now I have no power anywhere with a 12.9 v battery and power to starter solenoid, key on, no dash, nothing.