misfiring??? YYYY???

[93na]

hai, my 4g93 start to miss fire y!!! is sound like that!!! so i think is mis firing!!!!

when i fev and also when idle time!!!!

mod to the engine p&P, walbro fuel pump, fuel regulator, ecu rechip by previous owner!, head skim for higher com! tb port, block standard plus check engine light on and alladin lamp keep going off and on!!!!

pls pls pls help!!!

thanks

 

[DanzEterna]

bro did u :
1. did u wash yr engine bay recently?
2. change your spark plugs or plug cable recently?
3. was your fuel regulator tuned properly?

 

[93na]

i just got this engine! tolak last engine! wan to mod from standard!
anyway wash no, plug using biasa wan only, cable also standard gti will have it check soon!
fuel regulator is at 3.5 now! how to tuned it ah! my forman is super busy cant even call him!

 

[^pomen_GTR^]

Addition:


1)have u check your oil level???

2)have u check your spark plug???

3)did u see any white smoke coming out from exhaust????

if yes probably you valve seal worn already...or worse....pistonn ring damaged.....

 

[93na]

oil level stays the same! white smoke i dont think so la! cant really see cause using half exz,
i just did a full over haul on the head so i dont think the oil seal! if piston ring i can check by doing com check right!

wats the cause for the check engine and the oil lamp to appear????

 

[DanzEterna]

is your plug cables in the right order?

 

[93na]

em! that a good wan! how to check bro! i think i took it out! and refix it! have to check!

 

[DanzEterna]

wait, lemme check the manual 1st....

---------- Post added at 01:22 PM ---------- 6 hour anti-bump limit - Previous post was at 01:16 PM ----------

damn, i gave away the manual for 4g93, but anywas i follow using 4g63 (1-4-3-2), not sure is it correct or not,
u gotta ask yr pomen bro.

 

[93na]

thanks bro! will do that! how are you anyway! car al right!

 

[DanzEterna]

im doing fine bro...tq, how bout u? i heard yr car very de powderful now ah.....hehe...

 

[Mrnazmi]

Maybe the plugs and the plugs gap...? :hmmmm:

 

[93na]

im doing fine bro...tq, how bout u? i heard yr car very de powderful now ah.....hehe...

no la bro standard only now! scared la to many gti been stolen!

i am good! just been busy! i be going to see my forman bout the cable and tune the ecu! found out the ecu was tune for bot engine not na so need to retune la!

thanks all for the reply!

 

[93na]

found out wat was the problem! i clean my air filter the other day! took the air flow sensor box and clean too! while cleaning i took out some metal thing that look like 2 pic got lots of hole wan! thought will have better flow! did not know that that metal made lots of diff! so after kena fuc@@ng from my forman i fix it back and it ok now!!!! h= he he he. tangan gatal!!!!!

 

[kayour]

u mean air flow sensor??...u remove it??

 

[DanzEterna]

got pic ah? if u take out yr air flow sensor, car cant even start rite/

 

[oly]

can...u can drive even without air flow sensor...

---------- Post added at 01:08 AM ---------- 6 hour anti-bump limit - Previous post was at 12:49 AM ----------

u can start even there is no air flow sensor...

 

[xtremeleo]

u took out the sensing element? LOOOOOOOOLLLLLLLLLLL

 

[fstr]

misfiring can be due to following :

- ignition too advance.
- plugs heat range.
- plug cables.
- exhaust piping related.

 

[93na]

i dont know wat it called but it aluminum has lots of hole and it been place in side the air flow unit!

xtrem> i think u are right!

Frstrader> i was also my spark plug and exz system, was using half exz! now going to change to full piping!!!!

 

[oly]

that is airflow sensor...maybe because ur exhaust setup now...