1994 Integra: Bad Valve Adjustment?
 

I have a 1994 Acura Integra LS automatic with 165k miles. I had a valve
adjustment done on the car. Immediately after the work was done and
since that time the car has had poor gas mileage, a very rough idle,
and loss of power. I had abolutely none of those problems before the
adjustment. Before I take it back into the shop I would like to know if
a bad valve adjustment could be the source of these problems and how it
should be remedied. Also, are there any long-term risks associated with
a bad valve adjustment?