Cylinder 3 misfire

 Created by: earthling
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 Posted: Aug 26, 2019 04:51AM
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Quote:
Originally Posted by earthling
Just because I pulled the valve cover to look at the timing chain/tensioner. All good there. Used that as an opportunity to clean up a bunch of parts on the top of the engine. Started to look at pulling the injectors. They seem quite buried. I stopped after putting the valve cover back on (new gaskets, etc). Does anyone have a drawing of the injectors/fuel rail?
Try this link.

 Posted: Aug 26, 2019 04:47AM
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Member since:Dec 29, 2004
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Quote:
Originally Posted by earthling
Howdy, Could use a little input from the experts. My daughter just bought a new to her 2009 mini base model. It has 132k KMs on the clock. It checked out fine when we bought it, but recently developed an engine light and the code being thrown is P0303 Cylinder 3 misfire. I have changed plugs, just because the old ones were very worn down, and swapped ignition coil packs but the issue always sticks with cylinder 3. If I pull cylinder 3 coil pack plug while it is running the engine runs rough. If I start it up the engine light always comes back even though I have swapped positions of the coil packs and cleared the code (Bluedriver OBD2 reader). Any thoughts?
Aside from the error code, how does the car run?  Does it idle okay?

 Posted: Aug 26, 2019 04:04AM
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Just because I pulled the valve cover to look at the timing chain/tensioner. All good there. Used that as an opportunity to clean up a bunch of parts on the top of the engine. Started to look at pulling the injectors. They seem quite buried. I stopped after putting the valve cover back on (new gaskets, etc). Does anyone have a drawing of the injectors/fuel rail?

 Posted: Aug 23, 2019 11:04AM
Total posts: 2
Last post: Aug 26, 2019
Member since:Aug 23, 2019
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Howdy,

Could use a little input from the experts. My daughter just bought a new to her 2009 mini base model. It has 132k KMs on the clock. It checked out fine when we bought it, but recently developed an engine light and the code being thrown is P0303 Cylinder 3 misfire. I have changed plugs, just because the old ones were very worn down, and swapped ignition coil packs but the issue always sticks with cylinder 3. If I pull cylinder 3 coil pack plug while it is running the engine runs rough. If I start it up the engine light always comes back even though I have swapped positions of the coil packs and cleared the code (Bluedriver OBD2 reader).

Any thoughts?