If you’re experiencing issues with your car’s engine, it could be a sign of an ignition coil malfunction. Ignition coils are an essential part of your vehicle’s ignition system. They convert the battery’s low voltage to high voltage, which is then used to start the engine.
But if an ignition coil fails, it can cause your engine to misfire or not start at all. In this article, we’ll take a closer look at the P0356 code, which indicates an ignition coil E primary/secondary circuit malfunction.
What is the P0356 code?
The P0356 code is a generic powertrain code that indicates a problem with the ignition coil E primary/secondary circuit. It’s a common code that’s found in many cars, including Ford, Dodge, and Chevrolet.
If your car has this code, it means that the engine control module (ECM) has detected a malfunction in the ignition coil E’s circuit.
What causes the P0356 code?
There are several reasons why the P0356 code might appear. The most common causes include a faulty ignition coil, damaged or corroded wiring, a failed spark plug, or a malfunctioning ECM.
Symptoms of the P0356 code
If your car has the P0356 code, you’ll notice some symptoms that indicate a problem with the ignition coil E. These symptoms include:
- Engine misfires
- Rough idle
- Engine stalling
- Poor acceleration
- Reduced fuel economy
- Check Engine Light (CEL) on
How to diagnose the P0356 code
If you suspect that your car has the P0356 code, you can diagnose it using an OBD-II scanner. This tool will read the diagnostic trouble code (DTC) stored in the ECM and provide you with a description of the problem.
You can also use a multimeter to check the ignition coil’s resistance and voltage. If the readings are out of specification, it’s a sign that the ignition coil needs to be replaced.
How to fix the P0356 code
To fix the P0356 code, you’ll need to address the underlying problem that’s causing the malfunction. Here are some steps you can take:
- Replace the faulty ignition coil: If your multimeter readings show that the ignition coil is faulty, you’ll need to replace it with a new one. Make sure to get the correct replacement part for your car’s make and model.
- Check the wiring: Inspect the wiring that connects the ignition coil to the ECM. Look for any damage or corrosion that might be causing a poor connection. Repair or replace the wiring as needed.
- Replace the spark plug: A failed spark plug can also cause the P0356 code. Check the spark plug for signs of wear or damage and replace it if necessary.
- Replace the ECM: If none of the above steps solve the problem, it’s possible that the ECM itself is malfunctioning. You’ll need to replace it with a new one.
The P0356 code is a common problem that affects many cars. If you’re experiencing symptoms like engine misfires and poor acceleration, it could be a sign of an ignition coil E primary/secondary circuit malfunction. By diagnosing and fixing this problem, you can ensure that your car runs smoothly and efficiently. Make sure to address the underlying problem that’s causing the malfunction and replace any faulty parts as needed.
- Can I still drive my car if it has the P0356 code?
You can still drive your car if it has the P0356 code, but it’s not recommended. The engine might misfire, stall, or have reduced power, which can be dangerous while driving.
- How much does it cost to fix the P0356 code?
The cost to fix the P0356 code can vary depending on the underlying problem. If it’s a faulty ignition coil, you can expect to pay around $200-$250 for parts and labor. If it’s a more complex issue, the cost can be higher.
- How long does it take to fix the P0356 code?
The time it takes to fix the P0356 code depends on the underlying problem. If it’s a simple fix like replacing the ignition coil, it can be done in an hour or two. If it’s a more complex issue, it can take several hours or even a full day.
- Can I fix the P0356 code myself?
If you have experience working on cars and have the necessary tools, you can fix the P0356 code yourself. However, if you’re not confident in your abilities, it’s best to take your car to a professional mechanic.
- How can I prevent the P0356 code from happening again?
To prevent the P0356 code from happening again, make sure to perform regular maintenance on your car’s ignition system. This includes replacing spark plugs and ignition coils as needed, checking wiring connections, and keeping the ECM clean and dry.