I have had a j-spec b18c in my 00 civic for the past 2 years. over the past 6 months month it has been sputtering/ hesitant/jerky on acceleration and idle. it doesnt happen every day, I can go weeks with out the problem, but now it seems to be more common. I have put brand new ngk spark plugs, new oem wires. cleaned all the ground wires, and it has a 2 year old distro cap on it. I have used injector cleaner 3 times now, and also iso-heat to remove any water from the gas. I get all my gas from the same gas station, always the 93+octane. anyone got some ideas what else it could be? much appreciated! Thanks

 

TPS?

Any check engine lights?

 

none... I also changed my fuel filter a few eeks ago

 

 

Have you checked to see if any of your fuel lines are pinched? Behind your Intake Mani?

What ignition system are you running?

 

no I havent checked, but I will now. I am just running stock

 

the fuel line looked fine, no kinks