My evo 6 has a terrible misfire around 3500-4000 rpm. I tought it could be the coils so I’ve put in a Spoolinup COP kit. It didn’t fix the problem. The problem occured right after I fueled at an unknown petrol station. Could this be due to bad fuel? I’m running non gapped BPR8ES spark plugs.
The idling issue occured right after I’ve put in a HKS short route intake and a battery relocation kit. Could this be due to disconnecting the battery? Or a bad ground.
Mod list:
HKS intake
Walbro 255 pump
Spoolinup COP kit
Battery relocation kit
Resonated decat
The idling issue occured right after I’ve put in a HKS short route intake and a battery relocation kit. Could this be due to disconnecting the battery? Or a bad ground.
Mod list:
HKS intake
Walbro 255 pump
Spoolinup COP kit
Battery relocation kit
Resonated decat