Running Problem, Loss in power, Rough idle, Shaking etc...

[cake69]

hi all

im in my first vw which is a golf 1.8t gti and i love it so far.

but at the moment its hit a few a bump along the road (not literally)

first im experiencing a weird shaking rough idle and 900-1000rpm, the front end literally shakes the whole car

second is that when i drive i can feel it is kinda being restricted at 2000rpm can feel the lack of power
and the vibration caused from this, but it would eventually shoot up after maybe 3000~3500rpm onwards to normal





The annoying problem is this happens randomly, it kinda comes and goes. so i didnt thought much of it

My primary suspicion is the MAF caz it looked rather 'not new' last time i pulled it out.

My car is only running a *DRY* pod filter with the airbox ripped out.


thanks









VW Mk4 GTI 1.8t running problem - YouTube


NOTE: In the video, car is driving fine UNTILL 1:07 it starts behaving very rough like i have described, then at 2:33 the car drove abnormally faster just briefly, than back to running like crap

---------- Post added at 10:42 PM ---------- Previous post was at 10:30 PM ----------

and the sound of it on idle

VW MK4 GTI 1.8t Idling Problem - YouTube


D:






edit 26/7/2012
unfortunately im back to square one

[balkanac]

get rid of he POD filter and replace the MAF. I killed my MAF when i had the POD filter, they dont like the oil from the filters
Have you tried unplugging the MAF while the engine is running? It should run rougher with MAF unplugged. If nothing changes the MAF is def dead.
Or you can get it scanned

P.S. dont expect much power from a stock 1.8t, they only have 110kw. MK4 GTI is the slowest GTI VW has ever made

[BL33SU]

I had the same issue.. Was my coilpack..

[bullsta]

you sure it,s stock mate.Turbo seems to spool much quicker than usual stock mk4.Can,t usually here the spool either.Can I here a BOV maybe??

[Sirocco20348]

Since your running a pod, where is your ignition coil heatsink located now and is it getting enough air?

http://www.vwwatercooled.org.au/forums/f14/removing-ignition-heatsink-airbox-safe-45277.html

Otherwise..

Change spark plugs and clean the maf... they are cheap...

If its sitll not fixed after all this.. replace the coil packs?

anyone else got any ideas?

[grtuned]

Scan for faults!!!

This should be the first thing to be done!!!!!

might lead to issue???

[noone]

I agree with Bullsta, what diverter / BOV do you have? Sounds like its blocked off, which would be confusing the EC

If its stock, could be bad. if its a BOV, get a diverter. If you don't know, do you know where to look?

[h100vw]

Coilpacks are a lot less likely that the Ignition amp on a MK4. The bolt down ones are pretty reliable IMO.

Sparkplugs and MAF are worth looking at too.

If you can't get it scanned, I'd do the plugs. Then try a MAF followed by an ignition amp.

V A Garage
Unit 3, 7 Olympic Cct, Southport QLD
Adam - (07) 55 916 009
www.vagarage.com.au

Gavin

[gringo_54_oval]

My 4 motion had exact same problems replaced the MAF and all good now. I know its a different engine but its just an idea. Good luck

[cake69]

hey all
unfortunately after the good period im back to square one.

VW Golf, Shaking, Lost of power - YouTube

i havent given the MAF a good clean as of yet (with the MAF cleaners at supercheapauto, lol), but ive been told its probably a faulty coilpack ??
if i drive with the studders, it sometimes have a intense burning smell.

need advices please.

the cars a 1.8t mk4.

cheers

[cake69]

i havent touched the DV btw, its still the black bosch one thats really small so i assume its the stock one (due to wear)

think the fluttering is coming from the intake "pipe" on the dry pod.

[h100vw]

This is like saying you have a cough and asking us what to do mate.

Nice video but without being there, not much use.

You need to have the ECU scanned for faults as we have pointed out previously.

I said earlier that the coilpacks are pretty reliable. You need to find someone on the Coast to look at it. Go and see VAGarage. I am sure that they would have a serviceable Amp to plug in. It'll fix it or not. Then move on. Shouldn't take more than half an hour to eliminate all the usual stuff.

Gavin

[cake69]

lol yeah mate i took ur advice

i went over to see adam at va garages at least 3 times now
but just gotta find the time to squeeze in to drop the car off due to my busy schedules

cheers for the reply

just wanted to get a point of direction to see what i should do,
caz i can replace the coilpacks myself otherwise

[h100vw]

No worries. You'll have to commit if you want it fixed. Driving like that will be dropping unburnt fuel down the exhaust and not doing the cat any favours. The tailpipe looks like it's been running rich for ages.

Could be a lambda probe but I still lean towards ignition, for experience.

Gavin

[cake69]

u mean the ignition amp mate???
the small plate looking device that was attached to the stock airbox??

i have it ziptied to the side firewall next to the pod... lol