cameronb96
New member
Car is at 113k miles and timing belt and water pump have not been done quite yet.
Here are the symptoms:
-Occasionally under heavy throttle the car will stutter instead of accelerate, anywhere from 2500 to 3500 RPM. This only seems to happen in 3rd gear and up.
-This could be linked to the previous, but in 6th gear at around 60mph when I can hear the turbo spooling under throttle, it also stutters and I can hear it in the whistling noise, and boost wont build up.
-Code P0304 for cylinder 4 misfire
-Oil is normal color and texture, tested before and after an oil change and letting it run for a bit
-Exhaust smoke is not discolored
-Only seems to misfire when idling, possibly more in reverse I've noticed. It also happens very rarely, even where I've driven it a lot since it first started happening
-Car is slow/weak to start(like a weak battery), but the battery is the same as from the factory so I will be replacing that soon.
-When driving while viewing the boost gauge on my AP, the boost does not want to go above roughly 7 psi a lot of the time.
I did run a tank through the car with sea foam to clean the fuel injectors.
I also tested the spark plug(swapping with other cylinder) and coil pack and it still misfired on Cylinder 4.
If I remember any more helpful details later I will add them but thank you very much for taking time to read this and help me out.
Here are the symptoms:
-Occasionally under heavy throttle the car will stutter instead of accelerate, anywhere from 2500 to 3500 RPM. This only seems to happen in 3rd gear and up.
-This could be linked to the previous, but in 6th gear at around 60mph when I can hear the turbo spooling under throttle, it also stutters and I can hear it in the whistling noise, and boost wont build up.
-Code P0304 for cylinder 4 misfire
-Oil is normal color and texture, tested before and after an oil change and letting it run for a bit
-Exhaust smoke is not discolored
-Only seems to misfire when idling, possibly more in reverse I've noticed. It also happens very rarely, even where I've driven it a lot since it first started happening
-Car is slow/weak to start(like a weak battery), but the battery is the same as from the factory so I will be replacing that soon.
-When driving while viewing the boost gauge on my AP, the boost does not want to go above roughly 7 psi a lot of the time.
I did run a tank through the car with sea foam to clean the fuel injectors.
I also tested the spark plug(swapping with other cylinder) and coil pack and it still misfired on Cylinder 4.
If I remember any more helpful details later I will add them but thank you very much for taking time to read this and help me out.