Hi guys, I have 06 Honda city 1.3 idsi, it has been jerking slightly for a couple of months now. I always feel it jerking between 1.5-2.5 RPM. but at high speeds, i barely feel that its still jerking, pero hirap na siya mag accelerate. I brougth it already to 3 honda Casa (alabang,pasig, magallanes) wala sila magawa, all they did is 1. regular PMS/Tune up,oil change etc. 2.Throttle body cleaning. sabi ng service advisor TP sensor daw, pero ginalaw un sensor, ramdam ko naman na na nag aadvance cya and delay, so it is working. they also checked fuel pump,filter and its ok, pero d mawala yun jerking nya, super less na yun power nya, tapos ang consumption ko for a full tank (32-35L) before nakaka ave. ako ng 500kms, pero now, swerte na maka 300KMS/fulltank. i brought it to an electrician, sinaksakan ng pang monitor ng computer box, pero all codes are working well.I even brought my friend's city just to compare readings, and the same lang ang results. gusto ng electrician ko is to thoroughly check the air intake system and fuel injectors to check kung malinis, takot lang cya kalasin yun intake manifold kasi plasticand pag kinalas, intake manifold gasket should be replaced. nag inquire ako sa honda Laguna kung pwede bumili ng gasket lang, bawal daw yun,tpos yun price nung gasket e 2k na agad, whereas meron din ako 97 sentra, ang mga gaskets around 300p lang, mapa anong engine gasket. But my question is, is it ok to go performing air/fuel system check to an electrician/mechanic? could you help me to find spareparts that I need for my honda at a reasonable price? or what else should I do before I take my car to the elecrtrician/Mechanic that I know? and, I installed racing filters with my engine a year ago, does it contribute to the jerking that I am experiencing right now? your suggestions will be really appreciated. thanks guys more power!!![IMG]file:///C:/DOCUME%7E1/default/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image001.gif[/IMG]