RODA SERVICE
Replace O2 Sensor(s)
Oxygen (O₂) sensors monitor exhaust gases and help your engine computer adjust the air-fuel mixture. As they age, readings drift or fail, causing poor mileage, rough running, or a Check Engine Light.
$198 - $432 with RodaCare
$220 - $480
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< Half Day
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THE RODA WAY
Our O₂ Sensor Replacement service installs high-quality sensors and verifies the fix — so your engine runs clean and efficient again. We believe in hospitality and transparency — you’ll always know exactly what we’re doing and why it matters.
Why Estimates May Vary
$198 - $432 with RodaCare
$220 - $480
Our goal is full transparency — pricing may vary based on:
- Number & position of sensors (upstream/pre-cat vs. downstream/post-cat)
- Engine layout & access (bank-2 or rear sensors can require more labor)
- Vehicle & emissions configuration (AWD packaging, heat shields, or rusted hardware add time)
- Multi-cylinder engines (V6/V8 often have more sensors than 4-cylinders)
We’ll always provide an exact quote after inspection — no surprises, ever.
When You Need This
A failing oxygen sensor can trigger your Check Engine Light, hurt fuel economy, and affect overall engine performance — here’s how to tell when it’s time for replacement.
Check Engine Light with O₂-related codes
Faults like P0130–P0167 typically point to failing upstream or downstream sensors and affect fuel trims.
Worse fuel economy or a rotten egg smell
Bad readings make the engine run rich or lean, hurting MPG and stressing the catalytic converter.
Rough idle or hesitation
Incorrect mixture adjustments from a slow or dead sensor can cause stumble and poor throttle response.
Emissions or inspection failure
Weak or lazy sensors can set readiness monitors to “not ready” or push emissions over limits.
When You Need This
A failing oxygen sensor can trigger your Check Engine Light, hurt fuel economy, and affect overall engine performance — here’s how to tell when it’s time for replacement.
Check Engine Light with O₂-related codes
Faults like P0130–P0167 typically point to failing upstream or downstream sensors and affect fuel trims.
Rough idle or hesitation
Incorrect mixture adjustments from a slow or dead sensor can cause stumble and poor throttle response.
Worse fuel economy or a rotten egg smell
Bad readings make the engine run rich or lean, hurting MPG and stressing the catalytic converter.
Emissions or inspection failure
Weak or lazy sensors can set readiness monitors to “not ready” or push emissions over limits.
⚠️ What happens if you skip it? ⚠️
Driving with faulty O₂ sensors can damage the catalytic converter, reduce fuel economy, and keep the Check Engine Light on — which may cause inspection failure and hide new issues.
How This is Done
We carefully test, replace, and verify your oxygen sensors using precise tools and data monitoring to ensure your engine performs at its best.
1. Confirm with scan & live data
Identify exact sensor(s), verify heater operation and response speed.
2. Access & remove old sensor
Soak threads if corroded; use proper O₂ sensor sockets to prevent damage.
3. Install new OEM-quality sensor
Apply anti-seize when specified; route wiring away from heat.
4. Clear codes & reset monitors
Verify fuel trims and sensor switching on a warm-up drive.
5. Final health check
Ensure no leaks, no returned codes, and stable trims.
Included in Every Service
You don't have to be a car expert—that's what we're here for. But we always make sure our drivers understand the service recommendations we make. Through pictures, videos, or over the phone, we'll explain our findings and recommend what work needs immediate attention, or can wait. We help you decide what's best for you.
Free safety inspection
We include a photo and video inspection with every service, so you can buckle up with confidence.
Free valet and towing
Your car's in the shop, but you don't have to be. Our Roda Runners will bring your vehicle to and from the shop free of charge.
Free initial diagnosis
Initial diagnosis is always free with service, and we only perform work you approve.
Free car wash
We add a little extra sparkle to every service with a complimentary light wash.
Rated 5-stars by hundreds of DC-area drivers
“Roda was a great service. I hit a pothole and had a blow out. They came and picked the car up downtown, fixed it, and dropped it back at my house. I'll definitely check them out again.”
- DAVE W.Usually just the failed unit. If mileage is high and multiple sensors are original, we can price pairs/banks for value.
Upstream (before the cat) controls fueling; downstream (after the cat) monitors catalytic converter efficiency.
Sometimes. We verify with live data and inspections so you don’t replace parts unnecessarily.
Yes — once proper feedback is restored, mileage and drivability typically bounce back quickly.
All battery replacements are backed by our Roda 12-month / 12,000-mile warranty, covering both parts and labor for your peace of mind.
Book Your O₂ Sensor Replacement Today!
Fix the light, save fuel, and protect your catalytic converter — with clear diagnostics, quality parts, and Roda’s trusted warranty.