Can anyone help me ??? I had code p0300 so I changed my plugs and wires now I have codes p0304 05 06 and I checked everything what should I do
How does it run? Noticeably misfiring? All the time? Accelerating? Going up hills?
Think optimistic. Maybe you have fixed the problem in cylinders 1,2,3 so 4,5,6 are the only remaining problems. Are you certain when the plug wires were changed, they were put back on in the correct order, tight connections, etc? Are there any other codes other than p03xx? Like a crankshaft position code? Or camshaft position code?
Vulcan motor? Single 6x coil pack? Change coil pack.
Sounds to me like you have the wires for cylinders 4, 5, and 6 incorrectly located on the ignition coil.
4,5, & 6 are on the front side of the engine, numbered from left to right. The cylinder numbers are on the coil pack. Trace the plug wires out.
“4,5, & 6 are on the front side of the engine, numbered from left to right.” …
…as you face the engine from the front of the car.