'97 Yukon Misfire - Need to take the kids to school!
Hello. '97 GMC Yukon 5.7 350 K1500. Some months ago I filled up the gas in town and 10 miles down the road got sudden loss of acceleration, misfire (not backfiring), rough engine. Service engine light flashing. No prior issues. I borrowed a code reader and got:
P0300 engine misfire
P0151 P0151 GMC - HO2S Circuit Low Voltage Bank 2 Sensor 1
P0157 HO2S Circuit Low Voltage Bank 2 Sensor 2
P0158 GMC - HO2S Circuit High Voltage Bank 2 Sensor 2
P0160 GMC - O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2
P0161 GMC - HO2S Heater Performance Bank 2 Sensor 2
At this point I have replaced:
- Bank 2 sensor 1 O2S
- Cap and rotor
- Spark plugs and wires
- Fuel filter
And I dumped a can of seafoam in the gas tank.
Nothing helped. I am sure hoping someone here can and very much appreciate any advice!!
P0300 engine misfire
P0151 P0151 GMC - HO2S Circuit Low Voltage Bank 2 Sensor 1
P0157 HO2S Circuit Low Voltage Bank 2 Sensor 2
P0158 GMC - HO2S Circuit High Voltage Bank 2 Sensor 2
P0160 GMC - O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2
P0161 GMC - HO2S Heater Performance Bank 2 Sensor 2
At this point I have replaced:
- Bank 2 sensor 1 O2S
- Cap and rotor
- Spark plugs and wires
- Fuel filter
And I dumped a can of seafoam in the gas tank.
Nothing helped. I am sure hoping someone here can and very much appreciate any advice!!
