1999 mk4 1.8T misfire problems - please help!!!!!!!!
 

I own a 1999 mk4 1.8 gti turbo and have heaps of trouble with an intermittant fualt. When problematic there is heavy hesitation. The car judders, does not accelerate and i think the fuel consumption drops although this is a little hard be definate on. If it's playing up there is also exceesive engine rock at idle, enough to make the front seats shake. There are days when the car runs perfect and others when its a nightmare.

I've changeg the plugs (genuine VW), timing belts, oil/filter, run fuel system cleaner through it. There are no fault codes on the computer. I,ve cheked this twice! I've also replaced the MAF sensor (twice!!) and all 4 coil packs (genuine) Has anyone got any ideas????

Please help ..... I really don't know what to try next ........ My local VW dealer don't want to know....

RE: 1999 mk4 1.8T misfire problems - please help!!!!!!!!
 

Hi - still haven't been able to get this resolved despite my best efforts. If anyone has any ideas please let me know.

RE: 1999 mk4 1.8T misfire problems - please help!!!!!!!!
 

Ive had the same problem with my 98 passat 1.8t. It was 1 bad coil and a bad Ignition Module. It solved the problem.