P0351 2002 Ford F150 Code - Ignition Coil A Primary/Secondary Circuit Malfunction
Quick Answer
The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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
- P0351 2002 Ford F150 indicates Ignition Coil A Primary/Secondary Circuit Malfunction .
- Common causes
- Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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 P0351 2002 Ford F150 Description
What are the Possible Causes of the DTC P0351 2002 Ford F150?
- Faulty Ignition Coil 1
- Ignition Coil 1 harness is open or shorted
- Ignition Coil 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0351 2002 Ford F150?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0351 2002 Ford F150 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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Frequently Asked Questions about P0351 2002 Ford F150 Code
What does the OBDII code P0351 mean on a 2002 Ford F150?
P0351 indicates a malfunction in the ignition coil "A" primary or secondary circuit, which could affect the engine's ability to produce a proper spark.
What are common symptoms of code P0351 in a 2002 Ford F150?
Symptoms include engine misfires, rough idling, reduced fuel efficiency, lack of power during acceleration, and the Check Engine Light turning on.
What causes the P0351 code on a 2002 Ford F150?
Common causes include a faulty ignition coil, damaged wiring or connectors, a defective spark plug, or issues with the Powertrain Control Module (PCM).
Can a bad spark plug cause the P0351 code?
Yes, a worn or faulty spark plug can cause improper ignition coil operation, potentially triggering the P0351 code.
How do I diagnose the P0351 code on my 2002 Ford F150?
Start by inspecting the ignition coil, spark plug, and wiring for visible damage. Use a multimeter to test the ignition coil's resistance and check the wiring for continuity.
Can I drive my 2002 Ford F150 with the P0351 code?
While driving is possible, it’s not recommended. Ignoring the issue can cause further engine damage, reduced performance, and increased emissions.
How do I fix the P0351 code on a 2002 Ford F150?
Repairs may include replacing the faulty ignition coil, repairing damaged wiring, replacing spark plugs, or, in rare cases, updating or replacing the PCM.
How much does it cost to repair the P0351 code on a 2002 Ford F150?
The cost varies depending on the repair. Ignition coils typically cost $50–$150, spark plugs $10–$20 each, and labor costs may range from $100–$200.
Can a bad PCM cause the P0351 code?
Yes, although it’s less common, a malfunctioning PCM can fail to send the proper signals to the ignition coil, triggering the P0351 code.
Do I need special tools to fix the P0351 code on a 2002 Ford F150?
Basic tools like a multimeter, spark plug socket, and OBDII scanner are typically sufficient for diagnosis and repair.
Discuss the causes and fixes for P0351 2002 Ford F150 OBDII Code
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