zaifulaika
Active Member
totally agree with u bro biao. when i press harder and turbo kick in, the jerking disappear. but when steady speed, jerking come in and its just like having an engine break...if is air flow sensor problem, u pedal heavy let the turbo kick in, when the jerking come, the engine will look like have a emergency brake, total pull back the power and when u have pedal but no any response. so i think is air flow sensor is time to change. cos i just change 1 only before cny, because i wash it then spoil already.
bro 4gbanger, already change the plugs to IW24 last month. at the moment, having power loss, jerking (i call it coughing) and higher FC (4 to 5 km/l)...well based on my experience, O2 sensor is the last resort. if air flow sensor kong, ur FC and power loss and also it affects the idling problem, ur car even barely drivable. better check the plug, plug cable or ignition coil. last time my car jerking really bad when revving above 4000rpm full throttle. found out that i use a wrong sets of plug. it was denso iridium IW20(meant for stock everything). i was suppost to use IW22 or IW24(meant for boost above stock)
above all, currently using petronas ron95. does it give any bad effect to the engine?