so i got a 98 2.8 1998 and recently the light for "check engine" comes on. so u know when u start up the car in the morning and it rpms are above the 1rpm and it warms up and goes below the 1rpm? well when i start it, it starts below the 1rpm and starts to rumble or when im at a stop light the engine shakes.
can anyone help a scared audi owener?!!!!

thanks for ur time guys!!

 

Get the codes pulled then we can help you a lot more

fuel filter
injector
coil pac
spark plug
MAF

 

I know the exact experience you're going through. What octane gas are you putting in your car? I just started going to a new gas station and putting in a different octane premium and the radical rpms and shaking went away.

 

go to an autozone. have them get the code triggering youre CEL. post it here.

 

If you plan to own the car for a while,
get a code reader or a VAG-COM.

 

You'll need a laptop - or a computer very close to the car
Verify you have a serial port on your laptop before you order one that connects via serial and not USB
ebay it a great place for a cheap ODB cable
download free software from ross-tech's website - allows you to check and clear codes if you want to do more buy a full ross-tech cable for $250

 

Or better yet, get the real thing from ross tech.

Sounds like a bad coil pack to me, but pull the codes.