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Have a continuity meter? Check every single fuse and relay you can get your hands on, especially all the ones under the hood. Those are easy thing to check but it could be so many other things from a bad CPS to something up with the immobilizer/chip in key (but not too entirely sure if that was the issue it would even let you crank the vehicle - some vehicles have a fuel or spark cutoff UT I'm sure someone else will chime in on that matter). I guess if all the fuses check out then I would move onto see if you spark at all. Sorry I'm not more help man.
 

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Is fine thank you the plugs do spark fuses are good all relays click I'll have to look how to check immobilizer
Probably barking up the wrong tree with this one though. Does yours flash a little green key icon on the cluster for a half second like in this video, or does it stay green? If it just flashes green for a sec then it should be fine. If it stays lit then there is a problem with the chip in the key or the chip reader in the steering column. You said the fuel pump is good, but have you checked it? Sometimes they suddenly go bad (never had one do it to me in that fashion, but it does happen). This forum seems really inactive these days, a few years ago you would've gotten several responses by now. Kind of ironic if you ask me since you would think this forum would be more active as these veichles age and problems creep up.
 

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Right lol but no there is no green key light and yes I took the tube off the fuel rail and it still shot out
Do you get that little quick flash of the green key symbol up on the cluster when you go to start it though? If not, then it maybe the system isn't even working at all. I'm having trouble trying to figure out what the immobilizer actually disables on our vehicles, seeing mixed things. But from what I can tell it seems like it disables the fuel injectors (think back in the day they used to have the ecu disable the fuel pump relay but guess that was too easy to bypass). Like I said though, it might not be anything even related to the immobilizer at all. Next to impossible diagnosing things like this over the internet LOL. Do you have access to any sort of scan tool that has live data or a OBD bluetooth dongle? Even though it's not starting, you could still turn the key to the on position and see what some of your sensors are reading such as throttle position (would need to check mine but believe it should be around 5-15% just sitting there with your foot off the gas), and maybe the coolant and intake temperatures (since the vehicle isn't running, both of those temperatures should be close to the ambient temp +/- 10 degress). Those can give you hell if they're not plugged in or functioning properly. For instance, if the the ECU thinks it's -60 out when it's really 89 degrees, it will give you issues and your A/F ratio will be way out of wack. Good luck.
 

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I had a similar issue with a mustang once, replaced all the same parts and turned out even though we had spark, the ignition coil was dying and not producing enough spark to actually start. Only discoverd this testing with a dmm after a day of banging my head testing just it sparking with a screwdriver and all the other systems we replaced
 

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2009 Honda Civic SI with the K20 two liter ivtec with manual 6 speed transmission
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Battery is new terminals starter alternator fuel pump good new starter relay and spark plugs anyone have any ideas
I had a crank no start issue and somehow my spark plugs were fouled. My father in law was like oh it should still fire. It did not. Swapped in my old plugs, cranked right up. Double check everything regardless of how new would be my advice.
 

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I had a crank no start issue and somehow my spark plugs were fouled. My father in law was like oh it should still fire. It did not. Swapped in my old plugs, cranked right up. Double check everything regardless of how new would be my advice.
Yeah, I've gotten bad parts before so you never know. I am kind of confused about your story though. First it sounds like you said that your car wouldn't start because of fouled plugs, didn't start with the new ones (probably had an internal break), and then it ended up firing up once you put the old fouled up plugs back in? That's how what you wrote reads LOL.
 

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2009 Honda Civic SI with the K20 two liter ivtec with manual 6 speed transmission
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Yeah, I've gotten bad parts before so you never know. I am kind of confused about your story though. First it sounds like you said that your car wouldn't start because of fouled plugs, didn't start with the new ones (probably had an internal break), and then it ended up firing up once you put the old fouled up plugs back in? That's how what you wrote reads LOL.
Sorry, yeah fouled plugs, put in a old set and it fired right up. I have everything removed right now to pull out my motor. After all the problems and endlessly cranking it, I blew the head gasket. All I have left is to pull the motor mounts. I'm replacing all the gaskets, new timing chain and tensioner, probably going to throw on a new clutch and flywheel while it's out. Paint my engine and engine bay. Probably a few other odds and ends.
 
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