P0362
Fix within a few daysProblem with the ignition coil or its electrical circuit for cylinder #3.
Code P0362 means there's a problem with the ignition coil or its circuit for cylinder #3. Common causes: Ignition coil (70%), spark plug (15%), wiring (10%). Drivability: Limit driving, fix within a few days. Repair cost: $50-$100 DIY, $150-$500 professional.
Can I Drive With P0362?
Limit driving, fix within a few days
Essential trips under 10 miles, avoid highways and heavy acceleration.
Stop driving immediately if: Flashing Check Engine Light, loud engine noises, burning smell, significant power loss, or engine stalling.
Symptoms of P0362
- 1Engine runs rough or shakes
- 2Engine lacks power
- 3Engine hesitates during acceleration
- 4Check Engine Light is on and might be flashing
- 5Reduced fuel economy
Common Causes of P0362
Parts most likely causing this code, ranked by probability
An internal short or open circuit in the ignition coil prevents it from delivering the necessary high voltage to the spark plug.
70% of P0362 cases are fixed by replacing this part
A faulty spark plug can create excessive resistance or a short, leading the engine computer to detect a problem with the ignition coil circuit.
15% of P0362 cases are fixed by replacing this part
Frayed wires, corrosion, or a loose connection can interrupt the electrical signal to or from the ignition coil, causing a circuit malfunction.
10% of P0362 cases are fixed by repairing this part
A rare internal failure within the PCM's driver circuit can prevent it from properly controlling the ignition coil for cylinder #3.
5% of P0362 cases are fixed by replacing this part
Check These First (Before Buying Parts)
- Visually inspect the ignition coil and its electrical connector for cylinder #3. Look for any signs of damage, cracks, corrosion, or loose connections.
- Ensure the spark plug wire (if applicable) is securely attached to the coil and spark plug.
- If you have an OBD-II scanner with live data, check for misfire counts on cylinder #3.
How to Diagnose P0362
- 1Visually inspect the ignition coil and wiring for cylinder #3 for any obvious damage, corrosion, or loose connections.
- 2Swap the ignition coil from cylinder #3 with a known good coil from another cylinder (e.g., cylinder #1). If the code changes to P0361 (cylinder #1 coil circuit), the coil is faulty.
- 3Remove and inspect the spark plug for cylinder #3 for fouling, damage, or incorrect gap.
- 4Use a multimeter to check for proper voltage supply and ground at the ignition coil connector for cylinder #3.
- 5Test the resistance of the ignition coil for cylinder #3 if specifications are available.
- 6If all other components check out, test the continuity of the wiring harness between the coil connector and the PCM.
P0362 on Popular Vehicles
Honda Accord
2003-2024Ignition coil failures are common on these models, particularly after 80,000 miles. The coils can become weak, leading to P0362.
75% fixed by replacing the ignition coil
Toyota Camry
2007-2024While reliable, ignition coils on the Camry can fail, especially if spark plugs are neglected. Always inspect the spark plug when diagnosing P0362.
70% fixed by replacing the ignition coil
Ford F-150
2004-2024Coil-on-plug designs on F-150s are prone to coil pack failures, particularly on older models or those with high mileage. Moisture intrusion into the spark plug wells can also cause issues.
70% fixed by replacing the ignition coil
Frequently Asked Questions
What does P0362 mean?
P0362 indicates a malfunction in the primary or secondary circuit of the ignition coil for cylinder #3. This means the engine computer isn't seeing the correct electrical signal from or to that specific coil.
Can I drive with P0362?
Yes, for short trips only. You can drive to a repair shop or parts store, but limit driving. A continuous misfire can send unburned fuel into your catalytic converter, causing expensive damage.
Will P0362 clear itself?
No, P0362 will not clear itself. The engine computer detects a hard fault in the ignition coil circuit. You must diagnose and fix the underlying problem, then clear the code with an OBD-II scanner.
How do I fix P0362 myself?
Start by visually inspecting the coil and wiring for cylinder #3. Then, swap the cylinder #3 ignition coil with another cylinder's coil. If the misfire moves, replace the coil. If not, inspect or replace the spark plug for cylinder #3.
How much does it cost to fix P0362?
A DIY fix for P0362 typically costs $50-$100 for a new ignition coil or spark plug. Professional repair at a shop costs $150-$500, including parts and labor.
P0362 keeps coming back - why?
If P0362 returns after replacing the coil, check the spark plug for cylinder #3. Also, thoroughly inspect the wiring harness and connector for damage or corrosion. A rare cause is a faulty PCM.
Will P0362 fail emissions/smog test?
Yes, P0362 will cause your vehicle to fail an emissions or smog test. The Check Engine Light being on, especially with a misfire code, is an automatic failure in states with inspection programs.
What's the difference between P0362 and P0303?
P0362 specifically points to an electrical circuit malfunction with the ignition coil for cylinder #3. P0303 indicates a general misfire detected in cylinder #3, which could be caused by the coil, spark plug, fuel injector, or compression issues. P0362 is more specific to the ignition system's electrical integrity.
P0362 on Honda Accord?
On Honda Accords, P0362 is most commonly caused by a failing ignition coil. These coils can degrade over time, especially with higher mileage. Always check the spark plug at the same time, as a worn plug can stress the coil.
Questions to Ask Your Mechanic
Did you check the wiring harness and connector for cylinder #3's ignition coil for corrosion or damage?
Good answer: Yes, I visually inspected the connector and harness, and also performed a continuity test from the coil connector back to the PCM to rule out any wiring issues.
What were the resistance readings for the cylinder #3 ignition coil compared to a known good coil?
Good answer: I tested the primary and secondary resistance of the coil and found it was outside the manufacturer's specifications, indicating an internal failure. I also compared it to cylinder #1's coil, which tested good.
Repair Cost Estimate
DIY Repair
Parts only
$50-$100
Shop Repair
Parts + labor
$150-$500
Save $100-$400 by doing it yourself
Difficulty
intermediate
Time
0.5-1.5 hours
Intermediate. This repair requires basic mechanical skills, an OBD-II scanner, and potentially a multimeter for thorough diagnosis.
Cost of Waiting
Continued misfires send unburned fuel into your catalytic converter, causing it to overheat and melt internally. A $50-$100 ignition coil or spark plug fix now prevents a $800-$2,500 catalytic converter replacement later.
While You're In There...
You're already removing the ignition coil to access the spark plug. Replacing a worn spark plug prevents future misfires and ensures the new coil works efficiently.
Applying dielectric grease to the coil boot and electrical connector helps prevent moisture intrusion and ensures a good electrical connection, extending the life of the new coil.
Tools You'll Need
- OBD-II scanner
- Basic socket set
- Spark plug socket
- Spark plug gap tool
- Dielectric grease
- Multimeter (optional but helpful)
P0362 is a common ignition system code. Most repairs are straightforward, involving replacing a single ignition coil or spark plug, and your engine will run smoothly afterward.
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Your Next Steps
Step 1: Visually inspect the ignition coil and wiring for cylinder #3. Look for any obvious damage, corrosion, or loose connections.
Step 2: If no visual issues, swap the ignition coil from cylinder #3 with a coil from a different cylinder. Clear the code and drive the vehicle. If the code changes to the cylinder you swapped to (e.g., P0361 for cylinder #1), replace the original cylinder #3 ignition coil.
Step 3: If swapping the coil does not move the code, remove and inspect the spark plug for cylinder #3. Replace it if it's fouled, worn, or damaged.