P0351 on Peugeot: How to Diagnose & Fix
Ignition Coil A Primary/Secondary Circuit Malfunction
1 Peugeot model · 1 documented issue · $80-$250 repair
P0351 on Peugeot by model: symptoms, diagnosis and fix
The wasted-spark coil pack on the 206's small petrol engines (1.1 KFV, 1.4 KFW and related TU units) is a frequent failure item: one of the two internal coils breaks down, dropping spark on a paired set of cylinders (1/4 or 2/3). Owners report intermittent misfire, rough running, the engine cutting out and refusing to restart until it cools, and the management light flickering. Forum consensus also warns that cheap aftermarket replacement packs often fail repeatedly or seat poorly, causing the fault to return.
Common Symptoms
- Misfire on two cylinders, rough idle
- Intermittent stalling or cutting out, restarts after cooling
- Engine management light flickering or on
- Hesitation and loss of power under acceleration
- Hard or failed starting in damp weather
How to Fix
Replace the coil pack — OEM-quality (Sagem/Valeo/Bosch) units are strongly recommended over cheap aftermarket packs — along with spark plugs if worn. The job is a straightforward DIY or sub-one-hour shop task on these engines.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Valeo 245097 ignition-coil rail, OE 5970A8
Peugeot 206 TU1/TU3 8-valve KFV/KFW/KFX family where the existing OE is 5970A8/597078/597079. Four-pin rail; not NFU TU5JP4.
- Valeo 245095 ignition-coil rail, OE 597080
Confirm VIN, OE number and connector before purchase.
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Sources for this issue (4)
- Repeated Coil Pack Failures (2000 206 1.4i petrol, three coil packs failed incl. aftermarket) — Peugeot Forumsforum
- Peugeot 206 1.4 05 petrol misfiring, dealership cannot find what's wrong — Peugeot Forumsforum
- Peugeot 206 2003 Coil Pack Failure — dealer-acknowledged known problem (Sagem vs Bougicord packs) — Honest John Back Roomforum
- How to diagnose a misfiring Peugeot 206 (1.4 KFW wasted-spark DIS case study) — Professional Motor Mechanicarticle
P0351 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0351 mean on a Peugeot?
P0351 stands for "Ignition Coil A Primary/Secondary Circuit Malfunction." P0351 indicates the engine computer found a fault in the primary or secondary circuit of ignition coil 'A' (typically the coil for cylinder 1 or the first coil in the firing system). The PCM monitors the coil's control circuit, and when the electrical feedback doesn't match what it expects during firing, it sets this code. Because the coil creates the high-voltage spark, this often causes a misfire, rough idle, hesitation, or loss of power. It is a circuit/component fault for one specific coil rather than a general engine problem. On Peugeot it is documented across 1 model: 206.
What are the most common causes of P0351?
The most common causes of P0351 are: Failed or weak ignition coil, Damaged or corroded coil connector or pigtail, Broken or shorted wiring in the coil control circuit, Loss of power feed or ground to the coil, Worn or fouled spark plug overloading the coil, Failed coil driver inside the PCM/ECM. The specific cause varies by vehicle.
How much does it cost to fix P0351 on a Peugeot?
Published repair estimates on Peugeot range from $80 to $250 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0351 on a different make?
View P0351 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.