misfire

Firstly, I have a 2014 Genesis Coupe 3.8 Ultimate and this is my first forum post. I bought this car around 35,000 miles and am now at ~73,000 miles. I don't know the history from before I bought it but it is all stock and I use it as my glorious daily driver. I haven't brought it to the track...

So in the last 2 weeks, I've now had a flashing CEL twice. I do not have a log as I wasn't racing or doing anything out of the ordinary. Both times the flashing CEL has occurred right after start up and acceleration. Wasn't going fast, both times under 40mph. Spirited acceleration though (3800...

Hi folks, I'm here to ask for advice dealing with Bank 2 (driverside) misfires which began about two weeks ago, and the car hasn't been driven much since. It idles very badly and I'm afraid to do any damage to the engine. I've instead spent several days reading up on threads here and...

Hey everyone, just wanted to share an experience I had with my 2015 5.0 the past couple of weeks. A few weeks ago I noticed under heavy acceleration that the car started to break up and cut power. After a couple of attempts at an italian tune up the problem got progressively worse and started to...

So my R-spec has been doing something strange. In gears 3, 4, and sometimes 6, when I get on it, I get a random "stumble" and "shudder" feeling reminiscent of what my Firebird would do when the ignition wires were arcing against the exhaust manifolds. Does anybody else have this problem? Is it...

Looking for help here. Have a dealer playing Parts Darts and lying to my face (or are ignorant). 2010 Genesis 4.6 with 92,000 miles. I've owned it since ~50k miles and it's been extremely reliable. Only repairs being battery replacement (~70k miles), and Alternator replacement (~80k miles)...

I've had my '09 V8 for the better part of 6 years and ~80k miles. Purchased used (CPO) in 2011 with 36k miles, and just rolled over 120k miles in the last couple of weeks. It has been a relatively painless few years, i was subject to the ABS module failure/recall, and some typical early 2009...

Hey guys, So one afternoon my check engine light pops on and I went by the auto parts store and got this: P0430 - malfunction within the catalyst system So I am assuming that my CAT went out on my 2012 Sedan 3.8 and now needs replacing. The next day, I was driving on the highway at about 95...

On Saturday evening I had multiple misfires as I was pulling out of a parking lot. I had been driving for a while (mostly highway using smart cruise control). I stopped for a few minutes at a convenience store to get a drink. As I was leaving, I started the car, reversed out of the space...

So New Years Eve I got rear-ended on I-35 South of Austin. I stopped, car behind me stopped, car behind him did not. Pulled to the shoulder then to a nearby gas station when the police came to get everyone in a safer location. As I pulled away from the shoulder I could feel an unevenness from...

My 2010 sat for three days in the garage. Temp is high sixties. Went to start the car and it sounded like a terrible misfire and rattles like valves. Exhaust smelt like a Toxic fume. It also threw a "check engine light". Shut off, let sit five minutes and car started normally but still had the...

Apologize in advance if I am posting in the wrong forum. I have only found one mention of a misfire problem related to 2009 Genesis and I am trying to learn if someone has more information on this problem. Purchased a new Genesis Sedan 3.8, 2011 model. After about 1500 miles it developed an...

Hello all, I never had any mechanical issues on my '09 Genesis before. Left the car sitting for about a week, and when I fired her up last evening, the car shaked pretty bad with check engine light blinking. As soon as I saw the blinking CEL, I turned her off. Turned her back up after few...