Hello, I have a 2014 evo I barley drive the car so it sits been a while since I turned it on months. Prio to this incident I had no problems with the car. Decided to do a oil change today and cranked it car has very low idle and it bogs, sounds weird. Has no power I drove it around my city for about 10 mins and the bog started to happen around 4k rpm . Car smells like gas as well. What could be the issue. Car is completely stock only thing added is a tomei cat back. Heres the link of some clips I took today. No CEL no codes. Any help is appreciated thanks in advanced.

 

Might want some advice from more seasoned Evo guru's.

My guess its a vacuum leak somewhere. (Look around the intake manifold area.

Keep us posted!

 

Pull the spark plugs and check to see if any have failed. It sounds to me like it’s not firing on all 4 cylinders. Check coil wiring too.

another thing you can do to determine which cylinder isn’t firing is pull either the coil plug off or the injector plug off while it’s idling, one by one. If it sounds worse when unplugged, then it’s not that cylinder. Plug it back in and go to the next. If there is no change is sound, and it’s still idling just as rough, then that’s the problem cylinder you need to address

if you’re smelling gas, i’m leaning toward it being an ignition issue. So it’s likely running on 2 or 3 cylinders and the other cylinder isn’t firing, but still injecting fuel which is going out the exhaust causing it to stink

 

I checked for vacuum leaks and couldnt find anything thank you for the reply !

 

Thank you so much im going to try this after work today and see if that might be the issue