Ok everyone my Z has been showing a P302 code. Its saying my number 2 cylinder is misfiring. I do have cams but its not a P300 random misfire its cylinder 2 only. So to check this issue out I have checked the compression on my Z and its fine. My spark plug on cylinder 2 looks ok also. So what I did was try to figure out what could be the cause. So I bought 6 Denso Iridium plugs, a new coil pack, new Injector, and I already have the new HKS Ignition upgrade coming. After I install all these components do you all feel that dam light will be off, because my car does not feel as if it is misfiring. I know I jumped the gun replacing everything going to that cylinder. It's just that I dont feel like guessing, and then checking when I need to get a inspection sticker within the month. Any input on what I can do to make sure this problem is gone would be great.


Sincerely Glen

 

wow man relax a little, try switching the coilpacks from another cylinder and see if the code follows the pack if it doesnt then you know you dont need the coil. If its still there then change the plug. thats alot of money and effort to just replace everything.

 

btw any mods?

 

Yea like everything NA possible besides rods and pistons lol.

Thanks Glen

 

cams? Did you try moving the coil pack and changing the plugs? Did you pull the code yourself? Ifso what was the freeze frame data if you have it i might be able to help you narrow down your problem.

 

I am changing the plug and coil pack along with the injector going to cylinder two. When i brought my car to get read at autozone the obd said misfire cylinder P302.


Thanks Glen