P1097 Code - O2 Sensor Circuit Slow Response after Coast Down Fuel Cutoff Bank 1 Sensor 1
Quick Answer
The P1097 diagnostic trouble code (DTC) indicates that there is a slow response from the O2 sensor circuit after the fuel supply to the engine is cut off during coasting. Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Vacuum leak. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1097 indicates O2 Sensor Circuit Slow Response after Coast Down Fuel Cutoff Bank 1 Sensor 1.
- Common causes
- Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Vacuum leak.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1097 Description
The P1097 diagnostic trouble code (DTC) indicates that there is a slow response from the O2 sensor circuit after the fuel supply to the engine is cut off during coasting. This specifically relates to Bank 1 Sensor 1, which is the O2 sensor located before the catalytic converter in the exhaust system.
Common Causes of P1097
- Faulty O2 sensor
- Wiring or connector issues in the O2 sensor circuit
- Vacuum leak
- Exhaust system leaks
- Engine misfires
Symptoms of P1097
- Decreased fuel efficiency
- Rough idling or stalling
- Engine misfires
- Increased emissions
- Check Engine Light illuminated
How to Fix P1097
- Diagnose the O2 sensor circuit using a scan tool to pinpoint the issue
- Inspect the wiring and connectors for any damage or corrosion
- Test the O2 sensor's response time and replace if necessary
- Check for vacuum leaks and repair any leaks found
- Address any exhaust system leaks
Cost to Fix P1097
The cost of repairing a P1097 code can vary depending on the specific cause of the issue. In general, replacing an O2 sensor can cost between $100 and $300, including parts and labor. However, if the problem is related to wiring or other components, the cost may be higher. Diagnosing and repairing this issue at a professional auto repair shop may typically range from $150 to $500, depending on the extent of the problem and the rates charged by the shop.
Need more information about the P1097 code?
Need more information on how to fix the P1097 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1097 code diagnosed by a professional: Find a repair shop in your area
Code P1097 Information for Specific Makes
- P1097 BMW — O2 Sensor Circuit Slow Response after Coast Down Fuel Cutoff Bank 1 Sensor 1
- P1097 MINI — O2 Sensor Circuit Slow Response after Coast Down Fuel Cutoff Bank 1 Sensor 1
- P1097 Subaru — Tumble Generated Valve Signal 2 Circuit Malfunction Short
Frequently Asked Questions about P1097 Code
No Frequently Asked Questions about P1097 Code found.
Discuss the causes and fixes for P1097 OBDII Code
Code P1097 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.