[Warcraftmagewarlock1]

Hi everyone I purchased a 2022 hellcat charger widebody with 15 miles from a dealership. Driving it home stopped at a chipotle to get some food , started the car with the remote red key and when I get inside there’s a check engline light ! So I check use the tool in the car to bring the code up and it says PO302 , googled it and basically cylinder #2 misfire. Been trying to google and search the forums with anyone else who has encountered this code but it seems rare. Does anyone have any idea what could be causing this ? Kinda sucks it has such low miles and already a check engine light.

Update - so they think it’s the fuel injector that’s causing it , they’re going to order a new one and hopefully that fixes it.

Update- so the fuel injector was replaced and the check engine light went away but at around 2200 miles more or less the check engine light comes back on but this time the code says it’s PO306

update- car is still misfiring even without the check engine light on,I think they’re going to try using Star and get more help from dodge engineers. Hopefully they find a solution

 

[Slowpoke387]

Do you feel it misfiring? If it’s actually misfiring there is prob a loose connection somewhere. If it is actively misfiring you prob don’t want to be driving it. If a cyl isnt burning the fuel it’s not good for the cats and O2’s. I’d make an appt. with the dealer. Warranty will cover it.

 

[Warcraftmagewarlock1]

Do you feel it misfiring? If it’s actually misfiring there is prob a loose connection somewhere. If it is actively misfiring you prob don’t want to be driving it. If a cyl isnt burning the fuel it’s not good for the cats and O2’s. I’d make an appt. with the dealer. Warranty will cover it.

Hi , when a car misfires is it a shaky feeling when in idle ,gear or reverse ? If so the car did feel shaky. And when the car was on at the dealership I was near the front and I felt heat coming from the engine but I’m guessing this is probably normal ? Just trying to find a dealership to bring it to in SoCal , is there such a thing as Srt certified techs ?

 

[Caddy59]

Could be a bad coil pack.

 

[Xylander]

Cylinder misfires can be caused by spark plugs, coil packs, injectors, wiring, and some other very remote causes. With a new car, you can almost rule out anything serious like a major hardware malfunction. Thus, I'd first look at the electrical components like the wiring, coil pack or spark plug. In my experience with that trouble code, it's always been a spark plug or a coil pack.

 

[Warcraftmagewarlock1]

Could be a bad coil pack.

Hi are those fairly simple to replace ? Would that part be backed up on order ?

 

[Warcraftmagewarlock1]

Cylinder misfires can be caused by spark plugs, coil packs, injectors, wiring, and some other very remote causes. With a new car, you can almost rule out anything serious like a major hardware malfunction. Thus, I'd first look at the electrical components like the wiring, coil pack or spark plug. In my experience with that trouble code, it's always been a spark plug or a coil pack.

Hi , ahhh okay that makes sense maybe it’s just a spark plug or a wiring thing. Are coil plugs fairly simple to replace ? Does the dealership usually have those parts in stock ?

 

[Slowpoke387]

Hi , ahhh okay that makes sense maybe it’s just a spark plug or a wiring thing. Are coil plugs fairly simple to replace ? Does the dealership usually have those parts in stock ?

Youre prob going to find a loose connection to a coil or something similar. Being brand new I’d be surprised if you actually have a bad plug or coil. Day 1 issues are usually human error at the factory.

 

[2ndAmend]

What did the dealer say?

 

[HellcatHellYeah]

I’d make an appt. with the dealer. Warranty will cover it.

THIS ^^^ 100%

is there such a thing as Srt certified techs ?

Technically any dodge service center is a certified SRT tech, there isn't any special qualifications for their mechanics for SRT. Power Brokers would be "SRT Techs" to install Direct Connection parts, new certification program they have to put their wrenchers through. It's a warranty issue. Any CDJR dealerships mechanics should be able to check and fix if it isn't a major defect in the engine.

 

[Warcraftmagewarlock1]

THIS ^^^ 100%


Technically any dodge service center is a certified SRT tech, there isn't any special qualifications for their mechanics for SRT. Power Brokers would be "SRT Techs" to install Direct Connection parts, new certification program they have to put their wrenchers through. It's a warranty issue. Any CDJR dealerships mechanics should be able to check and fix if it isn't a major defect in the engine.

Hi so I dropped it off at the dealership over the weekend and they’re a bit backed up hoping they can check it out by the end of the week , waiting to see what they’ll say hopefully nothing crazy , thanks for the replies everyone

 

[Warcraftmagewarlock1]

update so they think it’s the fuel injector that’s causing it and they’re going to order the new part. Can fuel injectors do this at around 225 miles more or less ?

 

[Xylander]

update so they think it’s the fuel injector that’s causing it and they’re going to order the new part. Can fuel injectors do this at around 225 miles more or less ?

First off, the definition of N.E.W. = a part that has Never Ever Worked (before).

There's been plenty of records where people had CELs off the truck. Search the forums here and note that there's been people with bad oil cooler lines, cooler lines that weren't properly secured, bad injectors, and so on. While it's rare to get an injector failure, it is certainly not unheard of. Injectors can be very fickle. It could have been a manufacturing defect, maybe someone on the line dropped it and it got some dirt or something inside the injector nozzle, maybe it got damaged somehow some kind of way... who knows?

Regardless of the root cause, if the injector is bad, then yes, it will absolutely trigger an engine misfire code because if there's no fuel being sent to the cylinder, the spark plug is not going to have anything to light and the car is going to trigger the misfire PDC and you get a CEL. As a driver, you'd likely feel and hear it as if one of the cylinders isn't firing, the engine will be out of balance (rough feel, bubbling sound). I assume they went through and checked the wiring and the coil packs. They also have deeper diagnostic tools than we have here on the forum and they can see whether or not if fuel is being delivered from the injector. My guess is they saw every other injector working fine, but that one was either intermittent or totally dead.

On the plus side, an injector swap is child's play and a very easy repair. If you can put a cap on an ink pen, you can swap an injector.

 

[Rockster]

update so they think it’s the fuel injector that’s causing it and they’re going to order the new part. Can fuel injectors do this at around 225 miles more or less ?

Not a common thing but yes a fuel injector can go bad at 225 miles. They can be bad right out of the box or work just fine even at 317K miles...

That a fuel injector (or anything really) can go bad at 225 miles or be bad right out of the box or at least go bad within the warranty period -- my 2018 Hellcat's uConnect radio failed at around 25K miles and 17 months -- is why there is a new car warranty.

Let the dealer replace the injector.

Your job is to assume the injector will not be the cure and assume the misfire/error code will appear. So when you go to pick up the car assume you will have to leave it.

Before you "accept" the car give it a road test around the area of the dealer. Nothing fancy just drive the car normally as you were when the CEL first came on. Drive the car more than just around the block.

If the CEL comes on or there are any other signs of an issue leave the car with the dealer.

 

[frictioncircle]

word of advice don't clear your codes with an obd2 reader...the dealer will be hard pressed to fix something without it...esp if it was an intermittent electrical fart...

 

[Xylander]

word of advice don't clear your codes with an obd2 reader...the dealer will be hard pressed to fix something without it...esp if it was an intermittent electrical fart...

Eh, clearing the codes only clears the active codes. The car stores a code history that can be accessed to see any intermittent or old codes.

 

[Dennis H]

Dealer name? New car waiting to fit it in this week sounds lousy.

 

[Rockster]

Eh, clearing the codes only clears the active codes. The car stores a code history that can be accessed to see any intermittent or old codes.

Maybe.

But the best advice is while one can read any codes but to not clear the codes if he plans on taking the car in to have the cause of the codes diagnosed.

 

[Warcraftmagewarlock1]

Update - so after the dealership got done replacing one of the fuel injectors the check engine light went away but at about 2200 miles more or less the check engine light comes back on but this time it says PO306. Originally the check engine light code was for PO302

 

[Vet Rider]

Update - so after the dealership got done replacing one of the fuel injectors the check engine light went away but at about 2200 miles more or less the check engine light comes back on but this time it says PO306. Originally the check engine light code was for PO302

Thats the misfire code for #6 now. Probably bad coilpack now. Sound about right for a covid car.