How much does it cost to replace fuel injector Toyota Yaris?

On a Toyota Yaris, replacing fuel injectors typically costs between about $1,200 and $2,400 if you replace all four injectors, including parts and labor. If you're only replacing one injector, expect roughly $350 to $750.

The total you pay depends on the engine design, injector price, labor rates, and whether you replace a single unit or the entire set. Most Yaris models use a four-cylinder engine with four injectors, and costs can vary by model year, region, and shop practices.

Cost overview

Prices reflect common rates in the United States for 2024–2025; actual quotes can vary by location and parts chosen.

• Single injector replacement: Typical total around $350–$750. This includes one new injector, labor (roughly 1–2 hours), and seals; price depends on injector brand and local labor rates.


• All four injectors replacement: Typical total around $1,200–$2,400. This includes four injectors, seals/o-rings, labor (roughly 4–6 hours), and possible diagnostic checks.

In short, replacing one injector is much cheaper than replacing all four, and total costs can vary widely based on where you go and which parts are used.

What affects the price

Several factors determine the final bill beyond the number of injectors replaced. The following subtopics cover the main variables you should consider when budgeting.

Injector type and engine configuration

The Yaris uses a four-cylinder engine in most markets; injector fitment (port vs. any variations) and compatibility with OEM specs influence part price and installation complexity.

Regional labor rates

Labor charges vary by region and by shop type (dealership vs. independent). Urban areas and high-cost regions typically bill higher per hour.

Parts quality and warranty

OEM injectors generally cost more but may come with longer or more robust warranties, while reputable aftermarket injectors can lower upfront costs but may have different warranty terms.

Seals, rails, and ancillary components

O-rings, seals on the fuel rail, and any required hardware add to the total. Some shops include these in the quoted price; others itemize them separately.

Diagnostics and reprogramming

Misfire diagnosis, fuel-system testing, and ECU learning or reprogramming can add to the cost, especially if special tools or updates are required.

Replacement vs cleaning

If symptoms point to clogged injectors rather than a single faulty unit, a professional cleaning service may be cheaper than full replacement. Cleaning four injectors can range from roughly $200 to $800, depending on method and shop.

Tips for getting a fair quote

To avoid surprises, ask your shop for a detailed, written estimate that breaks out parts, labor, and any additional fees. Use the questions below to compare quotes effectively.

• Is the estimate for parts and labor, and does it include diagnostic testing?


• Are OEM or aftermarket injectors used, and what is the warranty on those parts?


• Will O-rings, seals, and fuel-rail gaskets be included in the price?


• Is manifold removal required, and has labor time been adjusted accordingly?


• Is there a separate charge for diagnostic work or ECU relearning?

Obtaining multiple written estimates and asking for a clear breakdown helps ensure you’re comparing apples-to-apples and protects you from unexpected fees.

Warranty and injector quality

Warranty terms can vary significantly. OEM injectors often come with longer coverage, while aftermarket options may be cheaper but have shorter warranties. Confirm what the warranty covers (e.g., defects, clogging, or failure within a certain period) and whether it follows the injector or the vehicle.

Summary

For a Toyota Yaris, replacing a single fuel injector typically costs a few hundred dollars, while replacing all four injectors generally ranges from about $1,200 to $2,400, depending on parts and labor rates. If only one injector is faulty, targeted replacement is usually the most economical option; if multiple injectors are worn or clogged, replacing the set may be warranted. Always get a detailed, written quote, consider the option of cleaning as a cheaper alternative when appropriate, and verify warranty terms.

Is it worth replacing a fuel injector?

Yes, it's true that replacing old, worn fuel injectors is an easy way to improve an engine's efficiency. If you have an older vehicle with a set of worn fuel injectors, replacing them will help your engine run like new. You may even notice that your vehicle accelerates better.

Can I drive with a bad fuel injector?

It is not recommended to drive with a bad fuel injector because it can lead to expensive engine and catalytic converter damage, although you may be able to drive short distances depending on the severity. A faulty injector can cause poor performance, misfires, and reduced fuel efficiency, and if it's leaking, it can create a fire hazard. The main risk is that unburnt fuel can enter the catalytic converter, causing it to overheat and fail, which is a costly repair. 
Immediate symptoms to look for

• Engine misfires: The engine may sputter or shake, especially at idle. 
• Rough idling: The engine runs unevenly and may stall. 
• Poor acceleration: The vehicle feels sluggish and lacks power. 
• Check engine light: A faulty injector can trigger the warning light. 
• Fuel odor: A leaking injector can produce a strong smell of gasoline. 

Risks of driving with a bad injector 
This video explains the risks of driving with a bad fuel injector, including engine damage and catalytic converter failure: 49sMercie J Auto Care, llcYouTube · Jun 4, 2024

• Catalytic converter damage: Inaccurate fuel mixture can cause the catalytic converter to overheat and fail, which is a very expensive fix. 
• Engine damage: A leaking injector can dump too much fuel into the cylinder, potentially causing a hydrolock event that can damage pistons and connecting rods. 
• Poor fuel economy: The engine will burn fuel less efficiently, leading to higher fuel costs. 

What to do

• Avoid long trips: Only drive as much as necessary and do so cautiously. 
• Get it diagnosed: Take your vehicle to a mechanic as soon as possible for a professional diagnosis and repair. 
• Consider a tow: If the car is running very poorly, it is safer to have it towed to the shop to prevent further damage or getting stranded. 

Is it expensive to fix a fuel injector?

The average cost to fix fuel injectors is between $500 and $2,500, with many jobs falling in the $600 to $900 range for parts and labor. The price varies significantly based on factors like your vehicle's make and model, the number of injectors needing replacement, the type of injectors (some are more expensive), and labor rates in your area. 
This video explains the cost of fuel injector replacement, including parts and labor: 59sLearnToDIY360YouTube · Jun 12, 2025
Cost breakdown and factors

• Parts and labor: The total cost is a combination of parts (injectors themselves, seals, etc.) and labor time. 
• Average cost: A common average is $600 to $900, but the range can be much wider depending on the vehicle. 
• Vehicle make and model: Luxury and performance vehicles typically have higher part costs and labor rates than economy cars. 
• Number of cylinders: A larger engine with more cylinders (like a V8) will be more expensive to service because more injectors need to be replaced. 
• Labor rates: Mechanic labor rates vary by location, so getting quotes from multiple shops is recommended. 
• Type of injector: Some modern systems, like direct injection, use more expensive, high-pressure injectors. 
• Warranty: Check if your vehicle is still under a manufacturer's powertrain or bumper-to-bumper warranty, which could cover the cost. 

Before you get an estimate

• Consider cleaning: Before replacing, ask a mechanic if a fuel injector cleaning is a viable option for your vehicle, as it's a much cheaper alternative. 
• Get multiple quotes: Contact a few different repair shops to compare prices for both parts and labor. 
• Ask for an itemized quote: Make sure the estimate includes all parts (like seals and lines) and the labor time involved. 

How long do Toyota fuel injectors last?

As mentioned in the last point, there are many variables at play that may mean you need to replace your fuel injector before the standard 50,000 miles or five years. Always refer to your owner's manual for model-specific recommendations. Each Toyota model may have different maintenance schedules and requirements.