GrayS550
Well-Known Member
- Joined
- Oct 29, 2022
- Threads
- 47
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- 291
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- Location
- Washington
- First Name
- Daniel
- Vehicle(s)
- 2018 Mustang GT
- Thread starter
- #1
I just changed my upstream O2 sensors. Everything is plugged in and looked good to go. I go to start my car and everything is normal for a couple seconds then it starts misfiring and idling very badly. It didn’t stall at all. The air/fuel ratio is going nuts.
Old codes:
P0141 - O2 sensor heater circuit Bank 1 Sensor 2 (had this for a while now)
P0161 - O2 sensor heater circuit Bank 2 Sensor 2 (had this for a while now)
New Codes:
P0300 - random/multiple misfires
P0302 - Cyl 2 misfiring
P0303 - Cyl 3 misfiring
P0308 - Cyl 8 misfiring
P0316 - Engine misfire detected
I reset the codes and started it up again and they came back within a minute. I also did a KAM relearn and nothing changed.
These are the O2 sensors I purchased:
https://a-premium.com/product/2x-Up...xygen-Sensor-for-2018-Ford-Mustang-U4bFLOOBoL
Old codes:
P0141 - O2 sensor heater circuit Bank 1 Sensor 2 (had this for a while now)
P0161 - O2 sensor heater circuit Bank 2 Sensor 2 (had this for a while now)
New Codes:
P0300 - random/multiple misfires
P0302 - Cyl 2 misfiring
P0303 - Cyl 3 misfiring
P0308 - Cyl 8 misfiring
P0316 - Engine misfire detected
I reset the codes and started it up again and they came back within a minute. I also did a KAM relearn and nothing changed.
These are the O2 sensors I purchased:
https://a-premium.com/product/2x-Up...xygen-Sensor-for-2018-Ford-Mustang-U4bFLOOBoL
Sponsored
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