Neuner
TYF Newbie
I'm getting both codes together, P0307 and P0300.
Every time I read about both occurring in my search, everyone pointed towards the fuel injector.
Wouldn't say engine runs rough, it just has a periodic 'hiccup'. It even took a while for the check engine light to come on. Occurs the whole time it's running, hot or cold, including idle and driving on highway. Gas mileage average has dropped 3 mpg.
I replaced Cyl 7 fuel injector and it ran great and smooth for a day. Average MPG started climbing. This morning, while still cold, it had another hiccup and the light came on.
I had checked #7 plug against the others and it looked normal.
Anyone have experience with both of these codes triggered at the same time?
Every time I read about both occurring in my search, everyone pointed towards the fuel injector.
Wouldn't say engine runs rough, it just has a periodic 'hiccup'. It even took a while for the check engine light to come on. Occurs the whole time it's running, hot or cold, including idle and driving on highway. Gas mileage average has dropped 3 mpg.
I replaced Cyl 7 fuel injector and it ran great and smooth for a day. Average MPG started climbing. This morning, while still cold, it had another hiccup and the light came on.
I had checked #7 plug against the others and it looked normal.
Anyone have experience with both of these codes triggered at the same time?
