P0351: How to Diagnose & Fix — Ignition Coil A Primary/Secondary Circuit Malfunction
13 vehicles · 9 makes · $60-$1,000 repair
How to diagnose and fix P0351: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Volkswagen Jetta · 2008–2021
The ignition coils on 2.0T engines can fail, causing misfires, rough running, and check engine lights. This is especially common on older coils and when using aftermarket spark plugs. High boost applications accelerate coil wear.
Common Symptoms
- Misfire codes (P0300-P0304)
- Rough idle
- Loss of power
- Flashing check engine light
- Poor fuel economy
How to Fix
Replace failed ignition coil(s). Consider replacing all four coils at once as they tend to fail at similar mileage. Use OEM or quality aftermarket coils (Bosch, Eldor). Replace spark plugs at same time with proper gap.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine VW/Audi 06E905115G red-top ignition coil
replace one test-confirmed failed Gen1/Gen2 coil-on-plug unit Fitment/availability: Selected Volkswagen 2.0T Gen1/Gen2 applications including matched Jetta/GLI configurations; confirm VIN, engine code and OE 06E905115 revision before pur…
- Bosch 06H905110P Gen3 ignition coil
replace one test-confirmed failed Gen3 coil-on-plug unit Fitment/availability: EA888 Gen3 1.8T/2.0T applications cross-referencing 06H905110P/L/G, 06K905110K and 06J905110N; use only after the vehicle selector and original number confirm…
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipConsider OEM parts for critical components like sensors and electrical parts - aftermarket can be unreliable
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
Sources for this issue (1)
Volkswagen Rabbit · 2006–2009
The 2006-2009 Rabbit with the 2.5L 5-cylinder engine (07K) is notorious for premature ignition coil pack failures. The individual coil-on-plug packs crack internally from heat cycling, causing misfires and rough running. The 5-cylinder layout requires all 5 coils to function properly for smooth operation, and a single failed coil creates noticeable vibration. Coils typically fail between 40,000-80,000 miles.
Common Symptoms
- Engine misfires (flashing check engine light)
- Rough idle and vibration
- Loss of power
- Check engine light with codes P0300-P0305
- Poor fuel economy
- Stumbling during acceleration
How to Fix
Replace all 5 ignition coil packs at once (VW part# 07K-905-715-F or Bosch equivalent). Replace spark plugs simultaneously with NGK ILZKR7B-11S or Bosch FR7NPP332. This is a DIY-friendly job requiring only basic tools and 30-45 minutes. Do not replace just the failed coil - the others are the same age and will follow.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Eldor 07K905715F five-coil and NGK spark-plug service kit
complete an elected five-coil and spark-plug service after misfire diagnosis Fitment/availability: 2006-2009 Volkswagen Rabbit 2.5L five-cylinder using the 07K905715F coil family; confirm vehicle selection and plug service application be…
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Honda Fit · 2007–2020
Ignition coil packs can fail causing engine misfires. Usually one coil fails at a time. Engine misfire, rough idle, check engine light with misfire codes. Bosch ($50-80 each) or Denso ($60-90 each) replacement coils recommended on FitFreak. Replace all four at once ($200-300) to prevent future failures and repeated labor costs. DIY installation very easy (bolt on, connector plug) - saves $100-200 in shop labor.
Common Symptoms
- Engine misfire
- Rough idle
- Check engine light with misfire codes P0300-P0308
- Reduced fuel economy
- Hesitation during acceleration
How to Fix
Test coil pack resistance with multimeter before replacing to confirm failure. Replace failed ignition coil pack. Consider replacing all four if one fails (preventive measure, $200-300 for all four). Bosch ($50-80 each) or Denso ($60-90 each) recommended. DIY installation very easy.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Honda 30520-PWC-S01 ignition coilOEMHonda 30520-PWC-S01
First-generation replacement after diagnosis identifies a failed coil Fitment/availability: 2007-2008 U.S. Honda Fit Base and Sport, 5MT or 5AT; one coil per cylinder.
- Genuine Honda 30520-RB0-S01 ignition coilOEMHonda 30520-RB0-S01
Second-generation replacement after diagnosis identifies a failed coil Fitment/availability: 2009-2013 U.S. Honda Fit Base/Fit and Sport, 5MT or 5AT; one coil per cylinder.
- Genuine Honda 30520-5R0-013 ignition coilOEMHonda 30520-5R0-013
Third-generation replacement after diagnosis identifies a failed coil Fitment/availability: 2015-2020 U.S. Honda Fit, all cataloged trims, 6MT or CVT; one coil per cylinder.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipReplace all four at once ($200-300) to prevent future failures and repeated labor costs
- TipDIY installation is very easy - bolt on, connector plug - saves $100-200 in shop labor
- WarningAvoid knockoff coils on eBay/Amazon - they fail quickly and waste money
Sources for this issue (2)
Peugeot 206 · 1998–2012
Kia Rio · 2001–2011
Find P0351 by make
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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?
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.
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?
Repair costs for P0351 range from $60 to $1,000, depending on the vehicle and root cause.
Which vehicles are affected by P0351?
Au7o has documented P0351 across 13 vehicle models from 9 manufacturers: Ford, Honda, Kia, Nissan, Peugeot, Pontiac, Subaru, Toyota, Volkswagen.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.