Do you have a smart key/ security system on your car? Could be something triggered that and is keeping your car from starting. I think if you put in the key and turn it to 'on' you'd see a security indicator on the dash lit up. I found this tidbit, but haven't tested it myself...
dell41oo wrote:There is an issue with the ignition system and smart keys from other vehicles. Mine has done this now 3 times, all occurred when in a public parking lot. My guess is, someone parked next to you started their car. Their smart key somehow confused the computer in your car.
There is a procedure in the owner's manual (under Starting, I think) that tells you how to un-confuse the computer. . . .
1. Insert your key an turn it to ON for 5 seconds.
2. Turn the key off for 10 seconds.
3. Repeat steps 1 and 2.
The Versa should start normally now.
Maybe the fuel isn't coming. You can check the fuel pump relay and it's fuse. I think you should be able to hear the fuel pump priming when you turn the key on. If not, maybe put your head in the trunk, near the bottom middle, and have your friend turn the key while you listen.
Speaking of fuses, just check them all while you're in there!
Maybe your battery is weak. 12.2 and 14.4 volts is just a starting point, having amps will make the car work. You can try a jump start. That's the quickest way to tell. You could also measure the amperage draw when trying to run the starter, that's a similar test, but tougher for me to explain.
Sorry, I said injectors, but you did coils. I was thinking coils as I typed injector. I think I made you say injector!
I guess you could pull out like one spark plug and look at it to see if it's all wet with fuel or dry as a bone. While it's out, you could test it for spark in a dark place and crank the engine real quick with it all wired up but not in the block. I'm not too versed in that trick, so maybe search a bit on it.
Please let me know how it goes with your tests. Thanks!