P1251 Audi Code - Start Of Cold Start Injector Short To Positive
Quick Answer
P1251 Audi indicates Start Of Cold Start Injector Short To Positive. Common causes include Faulty Cold Start Injector, Cold Start Injector harness is open or shorted, Cold Start Injector circuit poor electrical connection. 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
- P1251 Audi indicates Start Of Cold Start Injector Short To Positive.
- Common causes
- Common causes include Faulty Cold Start Injector, Cold Start Injector harness is open or shorted, Cold Start Injector circuit poor electrical connection.
- 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 P1251 Audi Description
What are the Possible Causes of the DTC P1251 Audi?
- Faulty Cold Start Injector
- Cold Start Injector harness is open or shorted
- Cold Start Injector circuit poor electrical connection
How to Fix the DTC P1251 Audi?
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 P1251 Audi 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 P1251 Audi code?
Need more information on how to fix the P1251 Audi code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1251 Audi code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1251 Audi Code
1. What does the OBD-II code P1251 mean in an Audi?
Code P1251 indicates "Start Of Cold Start Injector Short To Positive," meaning there is an electrical short in the circuit related to the cold start injector.
2. What are the symptoms of code P1251 in an Audi?
Symptoms may include difficulty starting the engine in cold conditions, rough idling after startup, reduced fuel efficiency, and the check engine light being illuminated.
3. What causes the P1251 code to appear in an Audi?
Common causes include a short circuit in the cold start injector wiring, a faulty cold start injector, damaged connectors, or issues in the engine control module (ECM).
4. Can I drive my Audi with a P1251 code?
Driving with a P1251 code is possible but not recommended, as it can lead to hard starts, inefficient fuel combustion, and potential long-term engine damage.
5. How do I diagnose the P1251 code on my Audi?
Begin by inspecting the cold start injector wiring and connectors for damage or corrosion. Then, use a multimeter to check for continuity and short circuits in the circuit.
6. How can I fix the P1251 code on my Audi?
Repairs may involve replacing a damaged cold start injector, fixing or replacing faulty wiring, cleaning corroded connectors, or reprogramming the ECM if necessary.
7. How much does it typically cost to fix a P1251 code on an Audi?
The repair cost can range from $100 to $500, depending on whether you need a new cold start injector, wiring repairs, or ECM reprogramming.
8. Can a faulty ECM cause the P1251 code in my Audi?
Yes, a malfunctioning engine control module (ECM) can misinterpret signals or fail to control the cold start injector properly, triggering the code.
9. What tools are needed to troubleshoot the P1251 code?
You’ll need an OBD-II scanner, a digital multimeter, and possibly wiring diagrams for your Audi to properly diagnose the issue.
10. Will clearing the P1251 code fix the problem?
Clearing the code will turn off the check engine light temporarily, but it won’t address the underlying issue causing the P1251 code to appear.
Discuss the causes and fixes for P1251 Audi OBDII Code
Code P1251 Audi 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.
