my car runs rough tha tha shop said it was a emission sensor on 2001 Lincoln LS

Since I took it to tha shop I found a vacum leak . Idels pretty good in park until u put it in gear then it misses like crazy an it cuts out around 50 through 65mph bout to fix tha vac leak if that doesnt fix it what else would cause the problem

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
check your mass air flow sensor or map sensor
THIS COULD BE ALOT OF THINGS SEEK A PROPER DIAG FROM A RELIABLE SOURCE