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P0304 error code - fixed but still issue

Member ID
#13323
Messages
53
Reactions
55
Likes
17
City
Belgrade
State
MT
Country
United States
Vehicle
2022 Challenger RE
#1
Car has been throwing this code - dealer cleared it a few times, but after coming back on for a 3rd time did some more checking and did a repair per the following.

Per repair invoice from dealer:

concern: indicator/warning lights concern (check engine light is back on advise)
cause: dtc p0304 during inspection found cylinder 4 misfire was caused by a injector threat was not closing, spark plugs fouled
correction: installed new fuel injector into cylinder 4, amd plugs for cylinder 4

Well, during test drive at dealer once fixed, light came on again. Dealer checked connections, was hoping there was just a loose connection.

Got car back, drove car next day all good. Next day, same check engine light came on. p0304 so car is back at the dealer.

So far they have tested the coil and the coil is good. Maybe they said they moved the coil to other cylinders and light still on. I'm no mechanic, but something like this was the recent update.

Thoughts?
 


Last edited:


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