[mckess]

I have a 2001 Volvo XC70 that I had towed off hwy last week. I had a fuel air metering issue. A hose had fallen off. That was put back on and a tune up. Now Check Engine light came on and now it says

0422 Main Catalyst Below threshold bank and
1238 Manufact Control Fuel Air Metering

HELP!!!!

What can I do to fix?

All suggestions are greatly appreciated!

Husband works on car and this is our first Volvo!!!