Emissions code
P0153: Upstream oxygen sensor slow to respond (bank 2)
How much to fix P0153? Typically $100–$350.
How this range is built
| Part of the job | Low | High |
|---|---|---|
| Parts | $40 | $180 |
| Labor: 0.6 to 1 hours × $110 to $150 an hour | $66 | $150 |
| Fees: shop supplies, disposal, diagnostics | $0 | $15 |
| Total, rounded | $100 | $350 |
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, oxygen sensor replacement (one sensor). Which repair your car needs depends on a proper diagnosis.
The oxygen sensor in front of the catalytic converter on the bank without cylinder 1 reacts slowly when the exhaust changes from rich to lean. A slow sensor means the computer adjusts fuel late, which hurts mileage and raises emissions. Age, heat and contamination wear the sensing element until it lags.
- Safe to drive?
- Short trips only
- Most common cause
- Aged oxygen sensor
Drive gently. Fuel economy may drop.
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What you may notice
- Lower fuel economy
- Rough idle
- Check-engine light
Common causes, most likely first
- Aged oxygen sensor
- Contamination from oil or coolant
- Exhaust leak
- Wiring fault
Check this first
Ask the shop to look for exhaust leaks ahead of the sensor and to view the sensor's live waveform. A healthy sensor flips fast, so a lazy trace confirms the sensor is the issue before you buy one.
Other repairs that sometimes fix P0153
| Repair | Typical range, US |
|---|---|
| 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).
P0153 questions
Why do sensors slow down?
Heat cycles and contamination slowly wear the sensing element. Oil, coolant and fuel additives leave deposits on the tip, and over time the sensor reacts more slowly to each change.
Should both be replaced?
Often only the failed one, though old sets are sometimes changed together to save labor later. Ask the shop how old the other sensors are and what their live readings look like.
Does it affect mileage?
Yes, this is the main fuel control sensor on that bank, so a slow one can cost some fuel economy. It also makes the engine run a little less smoothly while the computer chases the mix.
How much does it cost to fix P0153?
The most common fix, oxygen sensor replacement (one sensor), has a typical range of $100 to $350 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 | $110 to $370 |
| New York City area | $110 to $360 |
| Los Angeles area, California | $110 to $370 |
| Chicago area, Illinois | $100 to $350 |
| Houston area, Texas | $100 to $340 |
| Dallas-Fort Worth area, Texas | $100 to $340 |
| Phoenix area, Arizona | $100 to $350 |
| Atlanta area, Georgia | $100 to $350 |
| Miami area, Florida | $100 to $350 |
| Seattle area, Washington | $110 to $370 |
More emissions 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.