AutoCodes – Ford – P0350 1998 Ford F150

P0350 1998 Ford F150 Code - Ignition Coil Primary Secondary Circuit Malfunction

Quick Answer

The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. Common causes include Faulty Ignition Coil Primary/Secondary, Ignition Coil Primary/Secondary harness is open or shorted, Ignition Coil Primary/Secondary 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
P0350 1998 Ford F150 indicates Ignition Coil Primary Secondary Circuit Malfunction .
Common causes
Common causes include Faulty Ignition Coil Primary/Secondary, Ignition Coil Primary/Secondary harness is open or shorted, Ignition Coil Primary/Secondary 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,561
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0350 1998 Ford F150 Description

The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.
OBDII Code P0350 1998 Ford F150 - Ignition Coil Primary Secondary Circuit Malfunction  - AutoCodes.com
P0350 1998 Ford F150 Code - Ignition Coil Primary Secondary Circuit Malfunction

What are the Possible Causes of the DTC P0350 1998 Ford F150?

  • Faulty Ignition Coil Primary/Secondary
  • Ignition Coil Primary/Secondary harness is open or shorted
  • Ignition Coil Primary/Secondary circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0350 1998 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 P0350 1998 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.

Need more information about the P0350 1998 Ford F150 code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0350 1998 Ford F150 Code

1. What are the common symptoms of OBDII code P0350 on a 1998 Ford F150?

- Common symptoms include engine misfires, rough idling, loss of power, and difficulty starting the vehicle.

2. What are the possible causes of OBDII code P0350 on a 1998 Ford F150?

- The code P0350 typically indicates a malfunction in the ignition coil primary or secondary circuit. Possible causes include a faulty ignition coil, wiring issues, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the ignition coil primary secondary circuit malfunction on my 1998 Ford F150?

- To diagnose the issue, you can use a multimeter to test the ignition coil's resistance and check for continuity in the wiring harness connected to the ignition coil.

4. Can a faulty spark plug cause OBDII code P0350 on a 1998 Ford F150?

- While a faulty spark plug can contribute to ignition issues, the specific code P0350 is more likely related to problems with the ignition coil or its circuitry.

5. How can I repair OBDII code P0350 on my 1998 Ford F150?

- Repairing code P0350 involves identifying and addressing the root cause of the ignition coil primary secondary circuit malfunction. This may include replacing a faulty ignition coil, repairing damaged wiring, or addressing ECM issues.

6. Is it safe to continue driving my 1998 Ford F150 with OBDII code P0350?

- It is not recommended to drive the vehicle with code P0350 as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.

7. Can I reset the OBDII code P0350 on my 1998 Ford F150 by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to diagnose and repair the underlying issue causing code P0350 to prevent it from reoccurring.

8. Will code P0350 on a 1998 Ford F150 affect fuel efficiency?

- Yes, code P0350 can affect fuel efficiency as it can lead to engine misfires and inefficient combustion, resulting in decreased fuel economy.

9. How much does it typically cost to repair OBDII code P0350 on a 1998 Ford F150?

- The cost of repairing code P0350 can vary depending on the specific issue causing the malfunction. Costs may range from replacing an ignition coil ($100-$300) to addressing wiring or ECM problems ($200-$500+).

10. Can a DIY enthusiast repair OBDII code P0350 on a 1998 Ford F150?

- While some DIY enthusiasts may be able to diagnose and address simple causes of code P0350, more complex issues such as ECM problems may require professional expertise. It is recommended to have a thorough understanding of automotive electrical systems before attempting repairs.

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