The Lemon IndexThe bank 2 upstream O2 sensor keeps reading rich.
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
Failing O2 sensor. Then: leaking injector.
Owners named P2198 in 5 complaints to the U.S. government, most often on the Ford.
The details
What P2198 means
The bank 2 upstream O2 sensor keeps reading rich.
Can I drive with P2198?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
40% of the owner complaints that name P2198 also say the car shakes, runs rough or misfires. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P2198
- Failing O2 sensor
- Leaking injector
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Shakes, runs rough or misfires: 40% of complaints
Share of complaints naming the code whose text also mentions each problem.
Related codes
P2196 P219A P2195 P219B P219C P219D P219E P2191
Quick answers
What does P2198 mean?
O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1). The bank 2 upstream O2 sensor keeps reading rich.
Can I drive with P2198?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
What causes P2198?
Failing O2 sensor; Leaking injector.
Counts: NHTSA owner complaints whose text names P2198. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.