How do I fix code P0351?
Table of Contents
How do I fix code P0351?
What repairs can fix the P0351 code?
- Replacing the spark plugs and spark plug wiring.
- Replacing the ignition coil.
- Repairing the wiring harness.
- Repairing the electrical connection fault.
- Replacing the ECU.
Which coil is P0351?
What Is Code P0351? Code P0351 is defined as “Ignition Coil ‘A’ Primary/Secondary Circuit Malfunction.” It’s an OBD-II diagnostic trouble code (DTC) that indicates a fault with ignition coil ‘A’ (a problem with the coil on cylinder #1 or its circuit).
How do I know if my ignition coil needs replacing?
What Are the Signs of a Faulty Ignition Coil?
- Loss of Power. This is one of the first symptoms of ignition coil failure.
- Check Engine Light On.
- Poor Fuel Economy.
- Backfiring.
- Misfiring Engine.
- Hard Starts and Stalling.
- Spluttering and Coughing Sounds.
- Jerking and Vibrating.
Where are the ignition coils located?
If your car has a distributor, follow the wire that is in the center of the distributor cap to find the igniton coil. Cars with coil packs usually have them mounted near a valve cover. Coil on plug ignition coils are typically placed near or directly over each spark plug.
Where is the engine coil located?
What will a faulty ignition coil cause?
Engine Misfiring or Stalling Misfires are more likely to occur when the engine is under strain, and they can generate emissions. This is why increased emissions and the smell of gas coming from the exhaust are symptoms of a bad ignition coil.
Can you replace just 1 ignition coil?
You can replace one coil at a time or all at the same time. I would however recommend having all spark plugs replaced with the coils so you do not have to remove coils twice.
How do you know if your spark plugs are firing?
Test with a spark plug tester
- Attach a spark plug tester to the ignition wire. At the other end, the tester connects to the spark plug as it sits in your engine.
- Turn the ignition ON.
- Start the engine, or simply turn it over if it won’t start, and watch the transparent sides of the tester.
Will one ignition coil cause no start?
If your ignition coil is faulty, this voltage may not be transferred, so the engine may not fire. This can leave you in a no-start situation. Modern cars typically have more than one ignition coil to reduce the stress on each one, but this means more coils could potentially become worn over time.
Can you fix an ignition coil?
Replacing an ignition coil is a basic repair procedure you can do at home with tools from your local AutoZone. That being said, many of today’s vehicles, especially with engines positioned sideways, can make testing/changing an ignition coil a bit more complicated.
Should I replace 1 or all ignition coils?
In cases like this, your mechanic may recommend replacing all three rear ignition coils as a preventative measure. Whenever one of the ignition coils fails, it’s also recommended replacing all spark plugs if they haven’t been replaced in a while. New spark plugs will help ignition coils last longer.
What is a conventional ignition?
The conventional ignition system consists of two sets of circuits/windings – primary and secondary. The battery supplies 12 volts current to the ignition coil thru’ the contact breaker points. It charges the primary windings and also magnetizes the core of the coil.
