Coil Packs– Coil packs rarely go bad, but when they do, they can certainly cause P0305 in your Mazda 6. Here’s how to tell if your plug wires are bad (video). Spark Plug Wires– On most modern engines, the plug wires are not nearly as long as they once were, but they can still go bad. Here’s a great video on how to see if a spark plug is bad. That being said, the plugs are a great place to start. Most vehicles now come with iridium plugs that need changed very infrequently. Take a look at the electrodes and see if they are in good shape. Bad Spark Plugs– Spark plugs are one of the most common causes of P0305. They are presented somewhat in order from most to least likely to be causing the code: Here are the most common problems that may cause it. 
There are quite a few things that can cause the P0305 trouble code to trigger the Mazda 6.
You may smell raw gas coming from the tailpipe. The vehicle may produce excess vibration, especially at lower RPM. It depends on how serious the misfire is. The vehicle itself may begin to run rough. The P0305 trouble code will trigger the 6’s service engine soon light. It won’t be the fifth cylinder that you might see when looking at the engine. An important thing to understand when finding the location of Cylinder 5 is that it’s going to be the fifth cylinder in the firing order. P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it. Mileage may suffer as well when your 6 has P0305 as well. The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 5 into the exhaust. 
It also can cost money to ignore it, since driving with a misfire can damage the vehicle’s catalytic converter. Unlike a lot of the OBDII codes, this code has to do directly with engine combustion. These particular codes indicate that there is a misfire in cylinder’s one, two, and three respectively.įixing P0305 should be considered a high priority. It will often be accompanied by codes P0301, P0302, P0303, P0304 etc…. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes diagnosing the problems simpler than P0300, which means that the cylinders are randomly misfiring. P0305 is certainly a cause for concern, and should be considered a threat to the drivability your 6. P0305 is a fairly common trouble code with the Mazda 6.
0 kommentar(er)
