Auto Repair Services Automotive Technician Vehicle 
Hollenshades Auto Service
AUGUST 5, 2023
Starting in the 1994 model year, federal regulations required that vehicles have an oxygen sensor in the exhaust system after the catalytic converter. The heater power comes directly from the vehicle electrical system. In some vehicles, relays may be used to turn the heater off and on under certain conditions.
Hollenshades Auto Service
AUGUST 5, 2023
Starting in the 1994 model year, federal regulations required that vehicles have an oxygen sensor in the exhaust system after the catalytic converter. The heater power comes directly from the vehicle electrical system. In some vehicles, relays may be used to turn the heater off and on under certain conditions.
Hollenshades Auto Service
AUGUST 5, 2023
Starting in the 1994 model year, federal regulations required that vehicles have an oxygen sensor in the exhaust system after the catalytic converter. The heater power comes directly from the vehicle electrical system. In some vehicles, relays may be used to turn the heater off and on under certain conditions.
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