Hi y'all, new to the forum here, I've got a 1999 Beetle 1.8 Turbo with LOADS of problems, LOL.... was running ok when I got it, but needed a coil pack according to a misfire code it was throwing.

I replaced the coil pack, and then kept getting codes for other cyl. misfires... so I replaced ALL the coil packs. - Still was having issues, replaced spark plugs, air filter, etc. and still having issues making it un-drivable, it doesnt have enough power to get about 20mph and is running SUPER rough. I have attached a video showing how it's running, and I am ruling out major engine damage because if I put new spark plugs in it, it literally runs smooth and perfect for about 20 minutes... then right back to this again, and eventually will start throwing misfire codes again. - Nothing I do can keep this thing running right...

I am suspecting something is wrong, a sensor, something that is telling the computer to make it run bad.... but where to start? I can't just start replacing stuff, not having a clue where to begin! hopefully someone can help!

here's the video...
thanks so much!

 

Welcome to the forum Bill.

Can you post the error codes found?

Yes it sounds like it running on 3 cylinders.

What's the mileage, have you done a cylinder compression test?

https://volkswagenforum.com/forum/ne...gnature-34185/