P2097moderate severityPowertrain
Post Catalyst Fuel Trim System Too Rich (Bank 1)
on 2005 Dodge Viper 8.3L V10 · RWD
What this code means
The downstream oxygen sensor detects the exhaust running too rich after the catalytic converter. This often stems from excess fuel or a faulty sensor reading.
Symptoms
- Check engine light on
- Black smoke or fuel smell
- Poor fuel economy
Common causes
- Leaking or stuck-open fuel injector
- High fuel pressure
- Faulty downstream oxygen sensor
- Contaminated or failing catalytic converter
Diagnostic steps
- Scan and review fuel trim values
- Check fuel pressure against spec
- Inspect injectors for leakage
- Test downstream O2 sensor response
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1