P1663 Audi Code - Injector Activation Short To Positive
Quick Answer
P1663 Audi indicates Injector Activation Short To Positive. Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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
- P1663 Audi indicates Injector Activation Short To Positive.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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 P1663 Audi Description
What are the Possible Causes of the DTC P1663 Audi?
- Faulty Engine Control Module (ECM)
- Engine Control Module (ECM) harness is open or shorted
- Engine Control Module (ECM) circuit poor electrical connection
How to Fix the DTC P1663 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 P1663 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.
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Frequently Asked Questions about P1663 Audi Code
1. What does the OBDII code P1663 mean on an Audi?
P1663 indicates "Injector Activation Short To Positive," meaning there is an electrical issue where the fuel injector activation circuit is shorted to a positive voltage.
2. What are the common symptoms of the P1663 code on an Audi?
Symptoms may include rough idling, misfires, reduced engine performance, poor fuel efficiency, or the engine not starting.
3. What causes the P1663 code in an Audi?
Common causes include damaged or frayed wiring, a short circuit in the injector harness, a faulty fuel injector, or a malfunctioning engine control module (ECM).
4. How can I diagnose the P1663 code on my Audi?
Start by inspecting the wiring and connectors for the affected fuel injector, check for short circuits or open circuits, test the injector's resistance, and use a scan tool to monitor live data.
5. Can a faulty fuel injector trigger the P1663 code?
Yes, a faulty or internally shorted fuel injector can cause the circuit to short to positive and trigger the P1663 code.
6. Is it safe to drive my Audi with the P1663 code?
Driving with this code may cause engine performance issues and could lead to further damage, so it’s not recommended to drive the vehicle until the issue is resolved.
7. How can I fix the P1663 code on my Audi?
Repairs may include repairing or replacing damaged wiring, replacing the faulty fuel injector, or repairing/replacing the ECM if necessary.
8. Does clearing the P1663 code fix the issue?
Clearing the code with a scan tool will remove the error temporarily, but the underlying issue must be fixed to prevent the code from returning.
9. Can a bad ECM cause the P1663 code in an Audi?
Yes, although it’s less common, a malfunctioning ECM can cause injector activation issues and trigger the P1663 code.
10. What tools are needed to troubleshoot the P1663 code on my Audi?
You’ll need a multimeter, an OBDII scan tool, and possibly a wiring diagram to properly diagnose and troubleshoot the issue.
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