Code P 0305 Cylinder 5 Misfire

SilverBullet · Post by **SilverBullet** » 17 Jul 2009, 14:27

Does anyone know what this is..? Is it plugs or i heard of the pressure sensor (maybe) Any advice would be nice

Post by **Ozark Lee** » 17 Jul 2009, 15:09

Bad plugs can cause it as can a bad coil or a bad fuel injector. How does the car run?

If the car is running OK you can often just reset the code.

...Lee

SilverBullet · Post by **SilverBullet** » 19 Jul 2009, 08:47

the car is running really rough... almost like it's missing.. I will try the plugs first.. Thanks!

SilverBullet · Post by **SilverBullet** » 20 Jul 2009, 13:00

Changed the plugs... Still runs rough... Where is Cylinder 5 located on the engine so i can change coil pack??

Post by **Ozark Lee** » 20 Jul 2009, 15:58

5 is the cylinder nearest to the transmission.

...Lee

SilverBullet · Post by **SilverBullet** » 21 Jul 2009, 19:13

Here is another silly question... The owners manual has the firing order in it and it says 1,2,3,5,4. So does this mean that #5 is second closest to the transmission. I have a new coil pack coming for Cylinder 5.. i just want to make sure i install it on the right cylinder.. Thanks!

Post by **Ozark Lee** » 21 Jul 2009, 23:12

The cylinders are lined up in linear fashion.

On a North American car it is

Passenger's side----1--2--3--4--5---Driver's side

The firing order is the order in which the cylinders actually reach TDC on the compression stroke and the spark plug fires.

The codes refer to the actual cylinder location rather than the sequential firing order location.

...Lee

SilverBullet · Post by **SilverBullet** » 23 Jul 2009, 19:01

Sweet!! Thank you very much Lee!

SilverBullet · Post by **SilverBullet** » 28 Jul 2009, 08:28

So i replaced #5 cylinder coil pack and the car runs great! CEL is off and everything is good.