P0350 Ford Code - Ignition Coil Primary/Secondary Circuit
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 Ford indicates Ignition Coil Primary/Secondary Circuit .
- 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.
Code P0350 Ford Description
What are the Possible Causes of the DTC P0350 Ford?
- 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 Ford?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0350 Ford 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 Ford code?
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Information for Specific Ford Models
- P0350 1997 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
- P0350 1998 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
- P0350 1999 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
- P0350 2000 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
- P0350 2001 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
- P0350 2002 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
- P0350 2003 Ford F150 — Ignition Coil Primary Secondary Circuit Malfunction
Frequently Asked Questions about P0350 Ford Code
No Frequently Asked Questions about P0350 Ford Code found.
Discuss the causes and fixes for P0350 Ford OBDII Code
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Yes. The #1 ignition coil has been replaced twice. Every time it runs rough for about a 3-4 days and check engine light comes back on. Sometimes it runs fine after that on the way to work in the am but runs rough in the pm. I'm wondering if heat has any thing to cause it but then again it might hiccup a time or 2 in the am. I had the #5 replaced and no problem. Do you think it's possible to get 3 defective coil packs or maybe the mechanic is not installing properly?
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What model and year is your Ford? It very unlikely to have 3 bad ignition coils. Check engine grounds (batter negative terminals to engine), poor grounds could cause premature components failure.
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Are you using factory (factory specifications) ignition coils? did you replaced the spark plugs with the coils? bad spark plugs coils also cause premature ignition coil failure.
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The mechanic replaced spark plugs on all. Moved 2 good coil packs to back so older ones would be in front so theyd be easier to get to if they went bad put new one in #1
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