misfiring and jerking..help help!!

[karl_razlie]

hi guys need ur help...may turbo car jerking at idle and misfiring semput when reach 2800 or 3000rpm onward...already change new plug, fuel filter and already check coil and plug wth multimeter all seem ok...but this prob still happen..btw before this things happen, after one week i realize one of my vacum line to std fuel regulator tercabut ...after that than this thing happens...now kapla pusing no clue what happen to this car..hope u guys can help me...

 

[DanzEterna]

your plug cable got change ah?

 

[karl_razlie]

plug cable not change yet...but already check wth multimeter seem ok to me..hehe..or maybe try change first....

 

[DanzEterna]

how accurate is the multimeter? maybe accurate while idling but not above 2k rpm,
try swapping with your frens one 1st, if problem persists, then its not the plug cable.

 

[karl_razlie]

ok bro..but if already change coil and plug cable..this prob still apear what should i check...is weak fuelpump can perform this simptom??

 

[DanzEterna]

check your fuel pressure reading.......1st,
fuel pump might be the cause of the problem...

---------- Post added at 03:36 PM ---------- 6 hour anti-bump limit - Previous post was at 03:35 PM ----------

check your plug cable is in order if not mistaken is 1-4-3-2.
u double check wid your pomen.

 

[GSR06]

Try to change plug cable, fuel pump, injector, etc...I had similar problem during acceleration only and not during low RPM.

 

[flanker c]

misfiring= ignition problem..check spark plug gap...good gap 0.5mm -0.6mm..if over this number your car will missfiring..

 

[DanzEterna]

wat car u using bro? will check the gapping for u.

 

[karl_razlie]

thanks guys car ok already...after change coil plug hahaa

 

[arturo]

this round goes to Danz...he diagnosed it correctly heheehe

 

[DanzEterna]

haha, lucky shot i guess.

 

[karl_razlie]

hahaaha thankz danz u r my man...huhuhu

 

[DanzEterna]

no prob bro...hope yr ride will be fine .....