Possible causes
– Faulty HO2S Bank 1 Sensor 1
– HO2S Bank 1 Sensor 1 harness is open or shorted
– HO2S Bank 1 Sensor 1 circuit poor electrical connection
– HO2S Bank 1 Sensor 1 harness is open or shorted
– HO2S Bank 1 Sensor 1 circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
HYUNDAI Technical Service Bulletins for P1134 code
2002 HYUNDAI SONATA ENGINE AND ENGINE COOLING:ENGINE
2003 HYUNDAI TIBURON ENGINE AND ENGINE COOLING:ENGINE
1999 HYUNDAI SONATA UNKNOWN OR OTHER
2000 HYUNDAI SONATA UNKNOWN OR OTHER
2001 HYUNDAI SANTA FE UNKNOWN OR OTHER
2001 HYUNDAI SONATA UNKNOWN OR OTHER