Question 2009 Hyundai Sonata cranks but no start ?

[KennyMCOG]

So I had to change an ignition coil in my sonata. After I was done I started it up with no issues whatsoever. However without touching so much as the car itself the following morning it decides to not start. I have 0 idea how this could even happen because it makes 0 sense. Anyway as of right now the battery, starter and spark plugs are also okay. There really should be no issues as I said the car started right after I finished and I didn't even take it for a ride after I swapped the coils. It baffling to say the least and any info would help

 

[Eximo]

If the starter is cranking, then nothing is wrong there. All the coils still properly connected? (shouldn't prevent a start though). Not going to be anti-theft since it is cranking.

I hate to sound like a PC guy, but have you tried disconnecting the battery, waiting a minute, and then re-connecting? ECU might have gotten in a weird state.

More a forum section for discussing cars, less so troubleshooting, so maybe head over to Reddit, those guys are pretty reliable and have a lot of first hand knowledge of common issues.

Reddit - Dive into anything

www.reddit.com

 

[King_V]

It'd be good if you could hook up a scan tool to see what error codes come up.

My gut tells me crank position sensor, or maybe the ignition control module. But that's just guesswork.

 

[JD401]

Sounds a little like a fuel issue... dead fuel pump? When you say ignition coil, do you mean a fuel injector and/or coil pack? "Ignition coils" are an old-school item!