Thanks a lot for the video, it's very helpful. If the error P0304 persists and the culprit is cylinder # 4, is there anything else that can be done or it's the beginning of "bye-bye engine"?
I had this code on a 2000 1.4 facelift 4zzfe with physical symptoms of or feeling like running on 3 cylinders.. turned out like Peter said it was the cylinder 4 coil as replacing it instantly solved it. Weirdly, though, pulling the power from coil 4 made the car behave like it was running even worse, as if on 2 cylinders, barely able to move. Pulling the power from injector 4 did the same. That i can't explain, in theory removing cylinder 4 coil or injector power shouldn't have made conditions any worse.
thanks nice video. one of friend was planning to buy car, all looks great except there is P0304 error, now he is in dilemma whether to buy that car not. is serious issue with car cylinders
First step with 0304 code check plugs and coils replacing around to see if error is coming up in a different cylinder from no 4. If it is then cylinder 4 or plug is the problem. If not then is not plugs or coils. Could be injector needs cleaning, oxygen sensor, fuel filter needs changing or blocked catalyst.
If you look at the ignition connector. There is a white thing surrounded by orange rubber inside. Mine came off when i pulled the connector from the ignition coil. . i reconnected the connector to the ignition coil without the inside part. Is it going to cause problems?.
Thank you for your videos Peter you help a lot.....
Thanks a lot for the video, it's very helpful. If the error P0304 persists and the culprit is cylinder # 4, is there anything else that can be done or it's the beginning of "bye-bye engine"?
You are a blessing hope you have a blessed day
I had this code on a 2000 1.4 facelift 4zzfe with physical symptoms of or feeling like running on 3 cylinders.. turned out like Peter said it was the cylinder 4 coil as replacing it instantly solved it. Weirdly, though, pulling the power from coil 4 made the car behave like it was running even worse, as if on 2 cylinders, barely able to move. Pulling the power from injector 4 did the same. That i can't explain, in theory removing cylinder 4 coil or injector power shouldn't have made conditions any worse.
H, please replace all coils and issue is away.
God bless u for this video perfect solution i need it is very helpful pls i also p0741 do u have a video for it
Thanks 👍👍👍
thanks nice video. one of friend was planning to buy car, all looks great except there is P0304 error, now he is in dilemma whether to buy that car not. is serious issue with car cylinders
Hi, P0304 repair costs in Toyota Dealership center about 320 US$.
Is not serious. Unless problem been like that for many months and has damaged other parts. I bought new coil for only $80.
can this code be a spark plug or fuel injector also??
No, this is coil issues code.
Marvelous0622 replaced coils n plugs, still.,0304
TheJeepxj17 me too
First step with 0304 code check plugs and coils replacing around to see if error is coming up in a different cylinder from no 4. If it is then cylinder 4 or plug is the problem. If not then is not plugs or coils. Could be injector needs cleaning, oxygen sensor, fuel filter needs changing or blocked catalyst.
How does this work on a 2000 Camry. I don’t have individual coils?
Repair one coil
If you look at the ignition connector. There is a white thing surrounded by orange rubber inside. Mine came off when i pulled the connector from the ignition coil. . i reconnected the connector to the ignition coil without the inside part. Is it going to cause problems?.
Thanks for comment. 😀👍
thank you for your vídeo it was very helpful
+Ivan León OK and thanks for feedback. :-)
it helped. thanks
Many Thanks for comment. :-)
I’ve got a 2008 Corolla p0304 changed 4 plugs and coils , didn’t fix the problem and code is still on With my scanner
Thanks for info 👍
Sometimes is a Bad Fuel Injector. Easy to change.
Thank You for comment. :-)
"There is this bolt. And it looks like that."
😀👍
do you need to disconnect battry ?
Yes
It takes you so long just to get to the point
Good comment!
it Toyota corrola 2013 model with 22000 miles on it
Great car !
this guy sounds romanian af
Ok and thanks. 👍😀