Ignition and misfires code
P0355: Ignition coil E circuit problem
How much to fix P0355? Typically $70–$320.
Wide range: this job varies a lot. Itemize your quote for a better answer.
How this range is built
| Part of the job | Low | High |
|---|---|---|
| Parts | $30 | $120 |
| Labor: 0.4 to 1.2 hours × $110 to $150 an hour | $44 | $180 |
| Fees: shop supplies, disposal, diagnostics | $0 | $15 |
| Total, rounded | $70 | $320 |
The hourly rate is the BLS Occupational Employment and Wage Statistics, May 2025 average pay for this trade in the US, $27.13 an hour, times 4 to 5.5 to cover what a shop bills (overhead, tools, insurance, profit). Parts are a band from budget aftermarket to the manufacturer part. Full method.
Not a repair shop, estimates only. Typical range, estimate. Not a quote. Your car, parts and shop change the number.
This is the range for the most common fix, ignition coil replacement (one coil). Which repair your car needs depends on a proper diagnosis.
The computer switches coil E on and off to fire a spark plug and checks the circuit for the right response. It saw an electrical fault on coil E, the fifth coil in the engine maker's lettering. That cylinder may not spark correctly, so the engine can misfire and run rough.
- Safe to drive?
- Short trips only
- Most common cause
- Failed ignition coil
Steady light: drive gently to a shop. Flashing light: stop.
Get quotes from local shops
Got P0355? Tell us your ZIP and a shop near you can quote the repair. Free, takes a minute.
Fair Price is not a contractor or a repair shop. Who sees your request
What you may notice
- Rough idle
- Misfire
- Lower fuel economy
- Check-engine light
Common causes, most likely first
- Failed ignition coil
- Loose connector
- Worn spark plug
- Wiring fault
Check this first
Swap coil E with another coil on the same bank, clear the code and drive. If the code follows the coil, replace it. If it stays with the same position, look for a loose connector or damaged wire.
Other repairs that sometimes fix P0355
| Repair | Typical range, US |
|---|---|
| Spark plug replacement | $85 to $510 |
| Diagnostic scan (check engine light) | $55 to $250 |
Before you pay
- Ask the shop what test showed this part is the cause, not just that the code appeared.
- Ask for parts and labor listed separately, and for the hours.
- Ask for a written OK before any extra work. Many states require written authorization before repairs.
Got a quote already? Check it against the range. Want to see if your car has a recall tied to this problem? Check recalls by VIN.
Need to read a code yourself? OBD-II scanners on eBay (affiliate link, disclosure).
P0355 questions
Is coil E cylinder 5?
Often, but not always. The letter follows the maker's numbering, so the shop confirms with the firing order or a scan tool before swapping anything, to be sure they are working on the right coil.
Do I replace all coils?
Only the failed one, unless more test bad. If the car is old, though, other coils may be close behind, so ask the shop what the others look like before deciding.
Why do they fail?
Heat from the engine, age, and worn spark plugs that make the coil work harder to push spark across a wide gap. Changing plugs on schedule helps coils last longer.
How much does it cost to fix P0355?
The most common fix, ignition coil replacement (one coil), has a typical range of $70 to $320 across the US. It is an estimate built from parts prices and local labor wages, not a quote. Your car and shop change it.
Typical range in 10 metro areas
Only the labor rate changes between cities. Same parts, same hours.
| Area | Typical range, estimate |
|---|---|
| Boston area, Massachusetts | $80 to $350 |
| New York City area | $75 to $340 |
| Los Angeles area, California | $75 to $340 |
| Chicago area, Illinois | $75 to $330 |
| Houston area, Texas | $70 to $310 |
| Dallas-Fort Worth area, Texas | $70 to $310 |
| Phoenix area, Arizona | $70 to $320 |
| Atlanta area, Georgia | $75 to $330 |
| Miami area, Florida | $70 to $320 |
| Seattle area, Washington | $80 to $340 |
Related codes
- P0354: Ignition coil D circuit problem
- P0356: Ignition coil F circuit problem
- P0305: Cylinder 5 misfire
More ignition and misfires codes
Code meaning written in our own words. Some codes mean different things on different makes, so check your scan tool or manual. Not a repair shop, estimates only.