P0350 to P0362: ignition coil circuits
The engine computer has found a fault in an ignition coil's primary or secondary circuit. The letter, A to L, names the coil.
SeverityHighCarrying on can cause expensive damage, so deal with it now.
Can you keep driving?Only as far as the workshopWhat does P0350 mean?
On modern engines with spark plugs, each cylinder usually has its own coil sitting on top of the spark plug. The engine computer switches each coil and monitors its circuit; some systems also check that the spark actually happened. A coil that cannot fire leaves its cylinder without a spark, so the fuel goes out unburnt, the engine misfires and the catalytic converter heats up.
What causes P0350?
- A failed coil, often cracked by heat over time
- A damaged connector or wire at the coil
- A worn spark plug that overloads the coil
- Water or oil in the spark plug well
What to check first for P0350
- Note the coil letter and match it to the cylinder in the service information
- Swap that coil with a neighbouring one and see whether the code follows it
- Look for oil or water in the plug well when the coil is out
- Check when the spark plugs were last changed
Can you drive with P0350?
Drive only to a workshop, gently. A coil that does not fire means a misfire, and unburnt fuel can destroy the catalytic converter; if the warning light flashes, stop and have the car towed.
Since May 2018 an engine warning light that stays on is a major defect at the MOT, so the car fails until the fault is fixed.
Codes on this page
13
- P0350Ignition Coil Primary/Secondary Circuit
- P0351Ignition Coil "A" Primary/Secondary Circuit
- P0352Ignition Coil "B" Primary/Secondary Circuit
- P0353Ignition Coil "C" Primary/Secondary Circuit
- P0354Ignition Coil "D" Primary/Secondary Circuit
- P0355Ignition Coil "E" Primary/Secondary Circuit
- P0356Ignition Coil "F" Primary/Secondary Circuit
- P0357Ignition Coil "G" Primary/Secondary Circuit
- P0358Ignition Coil "H" Primary/Secondary Circuit
- P0359Ignition Coil "I" Primary/Secondary Circuit
- P0360Ignition Coil "J" Primary/Secondary Circuit
- P0361Ignition Coil "K" Primary/Secondary Circuit
- P0362Ignition Coil "L" Primary/Secondary Circuit
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
