All codes › P0351
P0351: Ignition Coil "A" Primary/Secondary Circuit
What it means
The computer detected an electrical fault in ignition coil "A"'s control circuit, so the cylinder it fires likely isn't getting spark.
Severity: High Coil A circuit fault causes a misfire on its cylinder.
Common causes
- Failed ignition coil "A"
- Damaged connector or wiring to coil "A"
- Shorted coil driver in the engine computer (rare)
- Bad ground for the ignition system
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Often DIY. Check the coil A connector; swap coils to confirm.
Repair cost
SEEDED ESTIMATE Roughly $50–$320
Most likely repair: ignition coil. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| Ignition coil | $24 | $155 | Typical listed retail range, source (8-coil kits ~$378–$474 excluded) |
| Labor 0.3–1 hr | $30 | $160 | $100–$160/hr, shop survey |
⚠️ This is an editorial placeholder range for this type of repair. It is not based on real invoices or licensed pricing data yet. Real ranges will appear here once enough reader invoices for P0351 are verified.
Verified reader invoices for P0351: 0. Share your repair bill to help build real costs.
Tools that can read P0351
- ScanFixAI: Pro $29.99/mo or $249.99/yr
- OBDAI: Annual PRO bundle $299
- BlueDriver Pro Next-Gen: $119.95 list ($99.95 sale seen)
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