I went to the inspection station and they failed

A code P0134 may mean that one or more of the following has happened:

• Bad O2 (oxygen) sensor
• Bad heater circuit in the O2 sensor
• Wiring or connector to the sensor frayed / broken
• Blown heater circuit fuse
• Holes in the exhaust system
• PCM failure

The most common fix is to replace the oxygen sensor (O2 sensor). But that doesn't rule out the possibility of:

• Rusted exhaust pipe
• Inspect wiring & connector(s) for problems
• Excessive amperage blowing heater fuse (still requires replacement of sensor but also replacement of blown fuse)
• Replace PCM (only as last resort after all other possibilities are covered.

If you go to Auto Zone, you can pick up the O2 sensor and they can give you the step by step instruction to replacing the upstream O2 sensor. "before the catalytic" If you don't have a O2 sensor socket, Auto Zone has that as a loner tool or you can buy one for around $8.99. But your better off using the loner tool and can replace the O2 sensor your self there in about 30 min, could be quicker but the engine may still be to hot to work on. Good luck