Rep Power: 0

Sup guys just a quick question if anyone can help out. I have a 2009 civic v4.

Out of nowhere car went into limp mode
VSA and CEL light came on.

Scanned the car and it threw P0304 misfire.
(Misfire on cylinder 4)

I tried unplugging the coil packs one by one to test it.

Correct me if I’m wrong but, when u disconnect the coil pack from cylinder that’s misfiring, there shouldn’t be any change right?

When I unplugged cylinder 1&4, the car stalls.
When I unplugged 2&3, the car runs fine.
Is that normal ?

Just wanted to check in before buying new spark plugs and coil packs.

 
Rep Power: 222

Try swapping the coil packs around to see if the code moves.
unplugging the misfiring one should make no difference.
Weird that #1 is doing the same.
​​​​​​get denso plugs and coils