P1203 Code - Fuel System Failure Caused No. 3 Cylinder Misfire
Quick Answer
P1203 indicates Fuel System Failure Caused No. 3 Cylinder Misfire. Common causes include Ignition spark, Check primary and secondary ignition, Check fuel system. 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
- P1203 indicates Fuel System Failure Caused No. 3 Cylinder Misfire.
- Common causes
- Common causes include Ignition spark, Check primary and secondary ignition, Check fuel system.
- 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.
Code P1203 Description
What are the Possible Causes of the DTC P1203?
- Ignition spark
- Check primary and secondary ignition
- Check fuel system
- Fuel pressure and injector
- Check for vacuum leaks
- Check engine mechanical condition
How to Fix the DTC P1203?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1203 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1203 code?
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Need Help with the Code?
Get the P1203 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1203 Acura — Fuel System Failure Caused No. 3 Cylinder Misfire
- P1203 Audi — Fuel Injector Circuit Cylinder 3 Electrical Malfunction
- P1203 Buick — Gas Mass Sensor Circuit High Frequency
- P1203 Cadillac — Gas Mass Sensor Circuit High Frequency
- P1203 Chevrolet — Gas Mass Sensor Circuit High Frequency
- P1203 GMC — Gas Mass Sensor Circuit High Frequency
- P1203 Honda — Fuel System Failure Caused No. 3 Cylinder Misfire
- P1203 Isuzu — Injector Circuit Open / Shorted Cylinder #3
- P1203 Jaguar — Fuel Injector Circuit Cylinder 3 Electrical Malfunction
- P1203 Volkswagen — Fuel Injector Circuit Cylinder 3 Electrical Malfunction
Frequently Asked Questions about P1203 Code
No Frequently Asked Questions about P1203 Code found.
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