4g92

[alvin_4G92]

why my engine (Mivec) always jerk during engine idling time, something like fuel pressure/spark doesnt supply accordingly but not happening and its running smoothly when engine rpm 1500~2000 above...

some more, i used to suspect air restriction because i had remove one of my vacuum hose which attached with fuel rail regulator and use a screw to stuck 1 side of it then test drive...everything goes smooth!!!!
that is why i suspected it...

i had change my spark plugs, fuel pump, fuel filter doesnt get well...

need assists/advises or any comments....thanks!!! :regular_smile:

 

[4g92t]

try check ISC and injector

 

[alvin_4G92]

what is ISC stand for? and what can i check of those injectors???

 

[alvin_4G92]

waiting for ur reply...thanks!!!!

 

[4g92t]

is your spark plug burn nicely? if yes lets assume ur injector got no problem.

ISC also called as stepper motor, its a small motor lies underneath ur trottle body, usually brown or black in color.

 

[alvin_4G92]

yes, i got it...
is there any possible caused by the ignition coil???

 

[suzuka-twu]

maybe ur spark plug cable is broken...hehe..

 

[alvin_4G92]

i had checked and measured the spark plug cables...everything are ok

this few days i realize something which is not possible but its happened
my a/c fan wasnt function properly even though my compressor cut in...now i already fixed my fan and it is working accordingly, my engine doesnt jerking like before...

 

[putra4767]

engine

That's strange bro...after the fan being fixed...the prob is solved..

Anyway, gud for you..

 

[alvin_4G92]

ya...i felt weird either... the problem is still there but been minor , not before ... i hope to solve this

 

[alvin_4G92]

intake manifold gasket and injector O ring leak!!

recently, i found out that one of my injector's O-ring is leak and suspect the intake manifold gasket leak... so what is u guys' opinion????

 

[yongfei]

bro, your car so many problem....are you buying 2nd hand?

I bought my 4g92p (2nd hand) 5 years ago...within this 5 years i alomost spend RM10k on my car......

we are pity guys...