Diagnostic Trouble Code (DTC) P0351 stands for “Ignition Coil ‘A’ Primary/Secondary Circuit.” It indicates that there’s a potential problem with the cylinder #1 ignition coil or its circuit . ... If the secondary part of the ignition coil is shorted out, the primary spike will be weak as a result.
How do I fix code P0351?
- Replacing the ignition coil.
- Replacing the spark plug and spark plug wire.
- Repairing or replacing an ignition coil connector.
- Repairing any other electrical wiring or connector faults.
- Replacing the throttle body.
- Repairing or replacing the PCM.
How do I fix the code P0354 on my Ford?
- Replacing or repairing a leaking manifold vacuum.
- Replacing faulty wiring to the ignition coil(s)
- Replacing old or mismatched spark plugs.
- Replacing or repairing the ignition coil(s)
How do I know if my ignition coil is primary or secondary?
- Remove the coil from the vehicle. ...
- Test the resistance of the primary circuit by setting the multimeter to the ohms setting. ...
- Test the secondary circuit by attaching one lead to the negative terminal of the coil, and the other to the terminal where the spark-plug wire plugs in.
What does ignition coil a primary control circuit open mean?
P2324 is an OBD-II generic code for the Ignition Coil I Primary Control Circuit Low to the Engine Control Module (ECM). This means the primary coil circuit has an open circuit causing the low signal to the ECM.
How much does it cost to replace ignition coils?
Ignition Coil Replacement Cost – RepairPal Estimate. Labor costs are estimated between $51 and $64 while parts are priced between $168 and $218. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.
Where is ignition coil located?
Coil on plug ignition coils are typically placed near or directly over each spark plug . Remove any plastic engine covers or air intake tubes to gain access to the coils.
What are the symptoms of ignition coil failure?
- Engine misfires.
- Rough idle.
- A decrease in car power, especially in acceleration.
- Poor fuel economy.
- Difficulty starting the engine.
- Check engine light is on.
- Exhaust backfiring.
- Increased hydrocarbon emissions.
Is it OK to drive with a bad ignition coil?
It is possible to drive with a faulty Coil On Plug (COP), but not advisable . Driving with a faulty waste spark ignition system won’t be possible. Driving with a faulty coil pack can damage other components of the engine. ... You’ll also learn how to diagnose and replace your faulty coil.
How long do ignition coils last?
The ignition coil on your car is supposed to last around 100,000 miles or more . There are a number of factors that can lead to this part become damaged prematurely. Most of the newer cars on the market have a hard plastic cover that is designed to protect the coil from damage.
How do you test a direct ignition coil?
The only safe way to test for spark is to use a spark plug tester tool . If a coil problem is suspected, measure the coil’s primary and secondary resistance with an ohmmeter. If either is out of specifications, the coil needs to be replaced. A coil can be easily bench tested with a digital 10 megaohm impedance ohmmeter.
How do you fix an ignition coil h secondary circuit?
- Repairing or replacing wiring or connectors that are associated with the one or more ignition coils.
- Replacing one or more ignition coils.
- Replacing the powertrain control module.
What is the code for a bad ignition coil?
Often, the check engine light will turn on in your dash. Most commonly, engine code P0351 (Ignition Coil – Primary/Secondary Circuit Malfunction) is what shows up when scanned using a car diagnostic tool.
What is primary secondary circuit?
The primary circuit is between the battery and the ignition coil . The secondary circuit is between the ignition coil and the spark plug. A secondary ignition circuit consists of three components and is the basis for newer variations of the ignition system.
