Jerk at high RPM

[sempoi]

bro coil change already...
it was a lot worse before that after changing the coil i bit better la..
but still got jerking la...

 

[zaki]

try changing the power transistor unit..:)

 

[Joeker]

Before changing anything, y not check the spark gaps first?

Although using cold plugs, you might not be using the right gap.

A gap too wide will miss especially under full boost with hi RPM.

Furthermore, checking the gaps is free and can be DIYed.

 

[Cow]

i experienced something like this before

was doing a constant 140 - 150 on the way to KLIA...
then stopped to pay toll..the car idle fluctuate and engine died...my car is AUTO!!!!

WTF :(

 

[jinkl]

hehe
i changed my spark plugs
now at idle got like 2-3 minutes will give a very very soft puff at exhaust..
my two frenz who have old cars said.. normal only they usually ignore it.. errr