Okay guys, my VX is coughing and sputtering. She has over 90,000 miles now.
I haven't changed the timing belt, would this have something to do with it?

It has a problem idling now. I've tried to blame it on bad gas but I don't think that's it.
I haven't changed the EGR valve but I have cleaned it a couple of times.
What do you think my problem is?

I'm wanting to swap it out for a newer one but I got to get it running smooth before I can sell it.

Any help greatly appreciated.
Thanks.