well first, my car was sputering giving me a check engine light, i took it to the dealer, they told me my number one coil was bad, i had that changed, my car was great for about 1month, then i started to notice the same problems, stutering back fire, and check engine light, i would rev it up on neutreal and the stutering would go way, but after a while it would start again, it got to the point were my car would not go over like 10 miles an hour, i took it to the shop, the codes read coils 2, 3 and 4 were bad, i had the coils changed and the spark plugs, and the fuel filter, the car ran great for the first 10 min but i started to notice again the stutering and check engine light will go on and off, blinking, any recomendations? i replaced evreything the read code gave me, it ussaly happens between 3k rpm, i dont know what to do from here, i want to thank you all in advance, it is a 2000 auti tt, 1.8, fwd, with 63k miles.

 

check the coilpack harness. It is known to crack and cause misfires

 

i hope no one minds, but i am new to the european cars, i ws a muscle fan for ages, would you hapen to have a pic of the coilharness your talking about, will it be hard to see the crack? again thank you for the advice.

 

its the wiring harness that clips into the coilpacks on each one of the cyliders. Just pull back the coverings and look to see if the wire covers have cracks or rips in them

This is the passat, dont mind the brackets

 

thank you verry much, i figure the cracks would possibly be very visable.

 

i checked evreyone of the wires, and did not see any cracks or cuts on them, any ither sugestions what could it be, i did notice that the probblem acures more when the car is wwarmed up, about 20 min into it. thanks in advance.

 

Dude, I have battled my packs and plugs all over the place. You need to check all the connections into the plugs/harness well. When changing packs sometimes those wires release in the plug and you get a crappy idle/run. I broke the little blue wire on pack plug #1 and it took me two hours and a pair of tweezers to find the problem...check those very closely!

good luck!

 

i will got through them with real detail, i hope that could be it, thank you again, i will post later to see if this wa it, it is getting dark oustside now.