Engine-Codes - Ford - P0350 1998 Ford F150

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

- Code Popularity: 2,323 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0350 1998 Ford F150?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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)

Code Tech Notes

Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM).

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How to Fix the DTC P0350 1998 Ford F150?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0350 1998 Ford F150 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The test fails when the Engine Control Module (ECM) does not receive a valid pulse signal from the ignition coil.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • Engine may be harder to start
  • Engine hesitation
  • Rough engine idle

What Does the P0350 1998 Ford F150 Code Mean?

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.

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

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