P0350 Code - Ignition Coil Primary/Secondary Circuit Malfunction
Quick Answer
The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. Common causes include Faulty Ignition Coil Primary/Secondary, Ignition Coil Primary/Secondary harness is open or shorted, Ignition Coil Primary/Secondary 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
- P0350 indicates Ignition Coil Primary/Secondary Circuit Malfunction.
- Common causes
- Common causes include Faulty Ignition Coil Primary/Secondary, Ignition Coil Primary/Secondary harness is open or shorted, Ignition Coil Primary/Secondary 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 P0350 Description
What are the Possible Causes of the DTC P0350?
- Faulty Ignition Coil Primary/Secondary
- Ignition Coil Primary/Secondary harness is open or shorted
- Ignition Coil Primary/Secondary circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0350?
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 P0350 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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Information for Specific Makes
- P0350 Ford — Ignition Coil Primary/Secondary Circuit
- P0350 Hyundai — Ignition Coil Primary/Secondary Circuit
- P0350 Infiniti — Ignition Coil Primary/Secondary Circuit Malfunction
- P0350 KIA — Ignition Coil Primary/Secondary Circuit
- P0350 Mazda — Ignition Coil Primary Circuit Fault
- P0350 Mercedes-Benz — Ignition Coil Primary/Secondary Circuit Malfunction
- P0350 Nissan — Ignition Coil Primary/Secondary Circuit Malfunction
Frequently Asked Questions about P0350 Code
1. What are the common symptoms of OBDII code P0350 indicating an Ignition Coil Primary/Secondary Circuit Malfunction?
- Common symptoms include engine misfires, rough idling, poor acceleration, and a noticeable decrease in fuel efficiency.
2. What are the possible causes of OBDII code P0350 related to Ignition Coil issues?
- Possible causes include a faulty ignition coil, damaged spark plugs or wires, wiring harness issues, or a problem with the powertrain control module (PCM).
3. How can I diagnose the root cause of OBDII code P0350 on my vehicle?
- You can diagnose the issue by performing a visual inspection of the ignition system components, checking for loose connections, testing the ignition coil, inspecting the wiring harness, and using a diagnostic scanner to retrieve additional codes.
4. Is it safe to continue driving with OBDII code P0350 present in the vehicle?
- It is not recommended to continue driving with this code as it can lead to further damage to the engine and catalytic converter. It is best to address the issue promptly.
5. Can I repair OBDII code P0350 myself, or should I seek professional help?
- Depending on your automotive knowledge and experience, you may be able to repair the issue yourself by replacing the faulty ignition coil or addressing wiring problems. If you are unsure, it is advisable to seek professional help.
6. What are some tips for preventing OBDII code P0350 from recurring in the future?
- Regularly maintaining your vehicle by replacing spark plugs and ignition coils at recommended intervals, using high-quality fuel, and addressing any engine performance issues promptly can help prevent this code from recurring.
7. Are there any safety precautions I should take when working on the ignition system to address OBDII code P0350?
- Always disconnect the battery before working on the ignition system to prevent the risk of electric shock. Additionally, follow proper procedures for handling ignition components to avoid injury.
8. How much does it typically cost to repair OBDII code P0350 related to Ignition Coil problems?
- The cost of repair can vary depending on the root cause of the issue, the make and model of the vehicle, and labor rates in your area. It is advisable to obtain quotes from multiple repair shops for an accurate estimate.
9. Can a faulty ignition coil trigger other OBDII codes besides P0350?
- Yes, a faulty ignition coil can trigger other related codes such as P0351 to P0358, indicating specific cylinder misfire issues. It is important to address all relevant codes to ensure proper engine performance.
10. How often should I have the ignition system components inspected to prevent OBDII code P0350 from occurring?
- It is recommended to have the ignition system components inspected during routine maintenance services or whenever you notice any symptoms of a potential issue. Regular inspections can help prevent unexpected breakdowns and OBDII codes.
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