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If your Buick LaCrosse is experiencing rough idle, stalling, or reduced throttle response, the mass air flow sensor can be a common culprit. Choosing the right sensor matters because incorrect fitment or unreliable signal readings will not solve drivability issues and can complicate diagnostics. This guide presents seven shortlisted mass air flow sensors selected for Buick LaCrosse owners. We evaluated options based on fitment accuracy, signal stability, and ease of installation to help you narrow choices before checking exact compatibility for your model year. Read on to see the top picks and the factors we used to evaluate them.
Looking for other parts? See all Buick LaCrosse parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | TINGYINGDA Mass Air Flow Sensor (MAF1012-AA) |  |
| Most Popular A crowd favorite that many people choose with confidence | AdvanEX Mass Air Flow Sensor for Buick LaCrosse (Replacement for 23262343) |  |
| Best Quality Built to a higher standard if you want something more solid | Bosch Original Equipment Mass Air Flow (MAF) Sensor |  |
| Best Budget The cheapest option that still gets the job done reliably | AdvanEX Mass Air Flow Sensor (replacement for 15911983) |  |
| Most Sold A high-volume bestseller chosen again and again | KUIPERAUTO Mass Air Flow Sensor (replacement for 15911983) |  |
| Best Value for Money The sweet spot between price and what you get | JTSAUTO Mass Air Flow Sensor (12576410) Compatible with 2010–2014 Buick LaCrosse |  |
| Best Overall The best all-around choice for most situations | A-Premium Mass Air Flow Sensor (fits Buick LaCrosse and related GM V6 applications) |  |
1. TINGYINGDA Mass Air Flow Sensor (MAF1012-AA)
| Mounting Type | Flange Mount |
|---|---|
| Output Type | electrical or digital |
| Measurement Accuracy | [High] |
This TINGYINGDA mass air flow sensor is a direct-style replacement intended to restore correct air measurement and resolve drivability issues caused by a failing MAF on Buick LaCrosse vehicles. It installs in the intake tract in place of the factory sensor and supplies electrical airflow data to the engine control unit. The listing emphasizes precision components and multiple inspections to improve measurement accuracy, and several users report straightforward installation and resolved check-engine warnings after fitting. Practical benefits include quick installation and the potential to clear airflow-related codes and rough-idle symptoms without dealer intervention. Limitations to note are variable reliability reported by some buyers and the six-month warranty window, which is shorter than many aftermarket parts warranties; a failed unit can leave a persistent fault code. Fitment must be confirmed against the LaCrosse year and part numbers before purchase to ensure compatibility.
Best for: Reliability-focused buyers who want a budget-friendly, factory-replacement style MAF to restore normal operation on a Buick LaCrosse and avoid dealer repairs.
Less Ideal for: Drivers seeking long-term guaranteed parts coverage or professional shops that prefer extended commercial warranties should consider alternatives with longer support periods.
- Direct replacement-style design aimed at restoring correct airflow signaling for the ECU
- Reported easy installation that can be completed quickly with basic hand tools
- Manufacturer states precision processing and inspection to improve measurement accuracy
- Some buyers report intermittent failures or persistent fault codes after installation
- Warranty coverage is limited to six months which is shorter than many competitors
Verdict A practical, easy-to-install replacement MAF for Buick LaCrosse owners looking for a quick, budget-friendly fix, but expect modest warranty protection and some variability in long-term reliability.
2. AdvanEX Mass Air Flow Sensor for Buick LaCrosse (Replacement for 23262343)
| Mounting Type | Flange Mount |
|---|---|
| Output Type | Analog Voltage |
| Specific Uses For Product | vehicle operation |
This AdvanEX mass air flow (MAF) sensor is a direct replacement meant to restore proper air-fuel metering and return normal engine behavior on Buick LaCrosse vehicles that use interchange 23262343. It installs in the factory air intake flange and sends an analog voltage signal to the engine control module, so installation is typically a plug-and-play swap after cleaning the air box and replacing the air filter. The unit is sold as a new, non-rebuilt sensor and aims to meet factory-spec fit and function for usual driving and highway use. Practical benefits include lower cost versus dealer parts and simple replacement that can clear fault codes and improve drivability when the original sensor has failed. Reported limitations include inconsistent long-term reliability across users and some instances where the sensor did not communicate correctly with the vehicle harness, which may require swapping for a factory-quality unit if problems persist.
Best for: Convenience-driven buyers who want a quick, low-cost repair to restore normal drivability on a Buick LaCrosse without a long parts search or dealer visit.
Less Ideal for: Owners seeking guaranteed long-term durability or who prefer factory-brand parts for critical engine sensors should consider a factory-quality replacement instead.
- Direct fit replacement for compatible Buick LaCrosse applications
- Analog voltage output compatible with factory engine control systems
- Sold new (not rebuilt) and intended to restore proper engine management
- Lower cost alternative to dealer or factory parts
- User reports show variable reliability and some failures after short service life
- Occasional compatibility issues with the vehicle harness requiring replacement with a different unit
Verdict A budget-friendly, plug-and-play MAF replacement for Buick LaCrosse that can quickly fix drivability issues but may show variable longevity compared with factory-brand sensors.
3. Bosch Original Equipment Mass Air Flow (MAF) Sensor
| Maximum Supply Voltage | 12 Volts (DC) |
|---|---|
| Measurement Accuracy | High |
| Mounting Type | Flange Mount |
| Output Type | Digital |
This Bosch MAF sensor measures intake air and sends a digital signal to the engine control unit so fuel delivery and ignition timing are correct. Typically used as a direct replacement when a failing MAF triggers drivability issues or diagnostic codes, it ships pre-calibrated with its housing for straightforward installation. Notable features include high measurement accuracy, a flange-mount design, and a digital output that matches factory signal expectations, which helps the engine return to proper idle, throttle response, and fuel economy. Bosch emphasizes robustness against water and particulate ingress to reduce sensor drift over time. Installation is usually a simple swap that takes minutes for a mechanically inclined owner. The main limitations are that fitment depends on exact engine and model year, so buyers must confirm vehicle compatibility, and like any electronic sensor it will eventually wear and may need replacement again rather than being a permanent fix.
Best for: Performance-oriented buyers who prioritize precise engine control and restored throttle response on a well-maintained Buick LaCrosse and expect OEM-level behavior from replacement parts.
Less Ideal for: Buyers looking for universal or multi-vehicle parts solutions or those who prefer aftermarket tuning sensors with adjustable outputs should consider alternatives.
- Factory-quality design and calibration aimed to match vehicle signal and fitment
- High measurement accuracy for consistent air flow readings and improved fuel control
- Patented housing design increases resistance to water and particulate damage
- Digital output and flange-mount match common factory connector and mounting styles
- Compatibility varies by engine and year so fitment must be verified before purchase
- Electronic component that will eventually fail and requires replacement rather than repair
Verdict A factory-quality, pre-calibrated Bosch MAF sensor that restores accurate airflow measurement for improved engine performance on compatible Buick LaCrosse models.
4. AdvanEX Mass Air Flow Sensor (replacement for 15911983)
| Measurement Accuracy | ±3% |
|---|---|
| Mounting Type | Surface Mount |
| Output Type | electrical signal |
| Material Type | Platinum Or Nickel |
This AdvanEX mass air flow (MAF) sensor replaces part number 15911983 and is offered as a direct-fit aftermarket unit for Buick LaCrosse applications. It measures intake air and sends an electrical signal to the engine control module so the ECU can adjust fuel delivery and timing. Installation is straightforward for a competent DIYer or technician because it is designed to match the factory mounting and connector layout. Notable details from the listing include claimed ±3% measurement accuracy, surface-mount installation, and factory-style electrical output. In real-world use expect restored idle smoothness and improved throttle response when replacing a failed or degraded MAF, though outcomes depend on vehicle condition and proper ECU reset after installation. The sensor is an inexpensive option that has passed non-destructive factory testing, but it is an aftermarket part so buyers should accept the usual variability in long-term durability versus a factory-quality unit. If precise long-term calibration or extended warranty coverage is a priority, a higher-end or OEM replacement may be preferable.
Best for: Budget-conscious Buick LaCrosse owners who need a low-cost, direct-fit MAF to restore drivability quickly without paying for a premium or dealer part.
Less Ideal for: Drivers seeking maximum long-term reliability, extended warranty coverage, or factory-certified calibration should consider OEM or higher-end aftermarket MAFs instead.
- Direct replacement fit intended for Buick LaCrosse to simplify installation
- Claimed ±3% measurement accuracy for reasonable airflow readings
- Surface-mount design and standard electrical output make it compatible with factory connectors
- Underwent non-destructive factory testing to verify basic functionality
- Aftermarket part so long-term durability and calibration may vary from factory-quality sensors
- Limited specification and support details compared with higher-end replacements
Verdict A low-cost, direct-fit MAF that restores basic airflow sensing for Buick LaCrosse owners but may not match OEM longevity or calibration.
5. KUIPERAUTO Mass Air Flow Sensor (replacement for 15911983)
| Measurement Accuracy | +/- 1% or better |
|---|---|
| Response Time | 15 Milliseconds |
| Mounting Type | Flange Mount |
| Output Type | Push-Pull |
This KUIPERAUTO mass air flow sensor is a direct-replacement sensor intended to restore correct airflow readings to the engine control unit. It is typically used as a plug-and-play replacement when the factory sensor fails, returning idle stability, fuel economy, and drivability to expected levels. Notable features include claimed measurement accuracy of +/-1% or better, a 15 millisecond response time, and a flange-mount design with push-pull output for straightforward electrical connection. The listing emphasizes factory-style fit and pre-delivery testing to reduce early failures. In practical use this means faster throttle response and more consistent fuel trims compared with a worn sensor, and installation is usually a simple swap with existing intake plumbing and electrical connector. Limitations are that fitment must match the specific engine and year, and performance depends on correct installation and an otherwise healthy intake system. Buyers should also expect typical aftermarket tolerance differences versus a factory unit despite the advertised precision.
Best for: A risk-averse mainstream buyer who wants a straightforward, tested replacement to restore factory-like drivability and fuel economy without needing performance upgrades.
Less Ideal for: Not suited for buyers seeking performance tuning parts or those who need a universal sensor for multiple vehicle makes and models.
- Claims high measurement accuracy (+/-1%), which supports stable fuel trims and efficient combustion
- Fast 15 ms response time for timely airflow updates to the engine control unit
- Flange mount and push-pull output match factory connection style for easy installation
- Factory-style testing claimed by the manufacturer to reduce early-life failures
- Compatibility is limited to specific GM engine years so verification against vehicle fitment is required
- Aftermarket parts can vary slightly from factory units which may require minor ECU adaptation or cleaning of mating surfaces
Verdict A plug-and-play aftermarket MAF aimed at restoring factory airflow measurement for compatible Buick LaCrosse engines while prioritizing ease of installation and claimed measurement precision.
6. JTSAUTO Mass Air Flow Sensor (12576410) Compatible with 2010–2014 Buick LaCrosse
| Mounting Type | Flange Mount |
|---|---|
| Output Type | electrical signal |
| Specific Uses For Product | automotive |
| Material Type | Plastic |
This JTSAUTO mass air flow sensor is a vehicle-specific replacement for the 2010–2014 Buick LaCrosse that measures incoming air mass and sends an electrical signal to the ECU so the engine can adjust fuel delivery. It installs as a flange-mount, plug-and-play unit intended to replace part number 12576410 and similar references, so installation is typically quick and requires only basic hand tools. The sensor’s plastic housing and thermally stable internal elements are engineered to resist higher under-hood temperatures, which helps reliability in daily driving. Buyers will appreciate the straightforward fitment for LaCrosse owners and the generally positive user reports of restoring idle quality and clearing check-engine codes. Limitations include variable long-term durability compared with higher-end factory replacements and occasional reports of premature failure, so expect standard lifespan variance for aftermarket sensors. This is a budget-focused replacement that prioritizes fit and immediate function over extended OEM-level longevity.
Best for: Practical optimizers who want a low-cost, vehicle-specific repair that restores drivability quickly without paying for dealer parts.
Less Ideal for: Buyers seeking the longest possible service life or guaranteed OEM-level longevity should consider higher-end factory-quality replacements or dealer parts.
- Direct-fit design for 2010–2014 Buick LaCrosse for simple, fast installation
- Plug-and-play electrical output compatible with factory connectors
- Constructed with thermally stable materials for better heat resistance under the hood
- Replaces common part numbers making it easy to match during purchase
- Positive user reports of resolving rough idle and clearing check-engine lights
- Aftermarket construction may not match long-term durability of higher-end factory-quality parts
- Limited warranty information provided in listing
Verdict A budget-friendly, plug-and-play MAF sensor for 2010–2014 Buick LaCrosse that restores drivability quickly but may not match OEM long-term durability.
7. A-Premium Mass Air Flow Sensor (fits Buick LaCrosse and related GM V6 applications)
| Maximum Supply Voltage | 12 Volts |
|---|---|
| Measurement Accuracy | +5% or better |
| Mounting Type | Bolt Mount |
| Terminal Quantity | 5 |
This A-Premium mass air flow sensor is a direct-replacement style unit designed to restore correct airflow measurement on compatible GM V6 engines such as those in Buick LaCrosse years noted in the fitment list. It mounts in place of the original sensor and sends an electrical signal to the engine computer to correct fuel mixture and idle behavior. Notable features include a bolt-on mounting design, five blade terminals for the electrical connector, and PBT/fiberglass construction that matches common factory materials. In practice the part is easy to install for a competent DIYer and many users report the check-engine light and lean-code symptoms resolving immediately after fitment. Measurement accuracy is listed as plus or minus 5 percent, which is adequate for restoring factory-like operation. Limitations include occasional fitment or sealing issues reported by a few users and the usual variability you see with aftermarket sensors versus a factory replacement, so some vehicles may still require calibration or a different part if problems persist.
Best for: Balanced owners seeking an affordable, do-it-yourself replacement that brings a LaCrosse back to proper running condition without a shop visit.
Less Ideal for: Those who prioritize strictly factory-sourced parts or need a guaranteed fit-and-forget solution from a dealer should consider a factory-quality replacement instead.
- Direct bolt-on replacement that many users report installs without reprogramming
- Five-terminal blade connector matches factory-style electrical plugs
- Construction uses PBT with fiberglass reinforcement for durability
- Listed measurement accuracy of ±5% helps restore correct fuel trims
- Some buyers reported missing rubber seal or marginal fit leading to intake codes on a few vehicles
- As an aftermarket sensor it can show more unit-to-unit variability than a factory-quality part
Verdict A practical, budget-friendly replacement that restores proper airflow measurement on compatible Buick LaCrosse V6 engines for most owners, with occasional fit or sealing caveats.
Choosing the Right Buick LaCrosse Mass Air Flow Sensor: Key Factors to Consider
Fitment and Connector Compatibility
Proper mechanical fit and the correct electrical connector are the baseline for any replacement sensor. If the sensor does not mount securely or the connector pins do not match the vehicle harness, the part will not function even if its internal electronics are high quality.
Confirming body shape, mounting hole placement, and connector pinout prevents wasted time and avoids potential damage to the intake tract. Also check whether installation requires any adapters or sealants, and whether the replacement preserves the OEM intake sealing to avoid vacuum leaks that can mimic sensor failure.
Signal Accuracy and Response
The main job of a mass air flow sensor is to translate incoming air volume into an accurate electrical signal for the engine control module. Sensors with more linear and stable outputs produce more consistent air-fuel control, which improves idle quality and throttle response.
Look for specifications or documentation about voltage output range, response time, and how the sensor behaves under transient loads. A sensor that drifts or lags can cause lean or rich running conditions, so prioritize units with documented signal stability across the engine operating range.
Contamination Resistance and Durability
Airflow sensors sit in the intake stream and are exposed to oil vapors, dust, and moisture. Construction that resists contamination and provides effective sealing extends service life and reduces the frequency of maintenance.
Consider sensors with protective housings, robust mounting seals, and materials resistant to corrosion. Durability also includes resistance to vibration and temperature cycles common in the engine bay, which helps preserve calibration and prevents intermittent faults.
Ease of Installation and Service
Installation complexity affects how quickly you can return the vehicle to service. Sensors that fit without modification and have clear connector interfaces minimize installation time and reduce the chance of installation errors.
Also consider whether the sensor requires any post-installation calibration, special tools, or ECU relearn procedures. Units that allow straightforward replacement with standard hand tools and do not require complex programming are preferable for do-it-yourself maintenance and for faster shop turnaround.
Diagnostic Transparency
Clear diagnostic behavior makes it easier to verify a sensor is functioning after installation. Sensors that produce predictable responses to airflow changes simplify testing with a scan tool or basic multimeter.
Look for units with well-defined failure modes and documentation of expected voltage or frequency ranges. This helps when checking codes such as P0100 or when performing live data checks during idle, acceleration, and load transitions.
Serviceability and Replacement Parts
Consider how easy it is to service or replace the sensor in the future. Availability of replacement units, documented mounting hardware, and whether the sensor can be cleaned safely affect long-term ownership costs and convenience.
If the sensor is cleanable, verify recommended cleaning procedures and compatible cleaning agents. Sensors that require complete replacement rather than periodic cleaning should be evaluated for long-term availability so you are not left with hard-to-source parts in future.
FAQ
What are common symptoms of a failing mass air flow sensor on a Buick LaCrosse?
Common symptoms often include rough idle, hesitation or stalling during acceleration, and fluctuating engine RPM. You may also notice reduced fuel efficiency or an illuminated check engine light with codes related to airflow measurement. These signs usually prompt inspection of the mass air flow sensor among other intake system components.
Can I clean the mass air flow sensor instead of replacing it?
Cleaning can help if the sensor is contaminated with dirt or oil, and some sensors are designed to be cleaned safely. Use a manufacturer-recommended cleaner and follow proper drying procedures. However, cleaning is not always a permanent fix if the sensor element is degraded or the electronics are failing, in which case replacement is needed.
How do I diagnose if the sensor is causing a P0100 code?
A P0100 code indicates an issue with the mass air flow circuit and often requires checking the sensor wiring, connector integrity, and compared live sensor readings to expected ranges. Use a scan tool to monitor airflow values at idle and during acceleration, and compare to factory specifications. The fault may also stem from intake leaks or wiring faults rather than the sensor itself.
Is installation of a replacement sensor difficult on a Buick LaCrosse?
Installation difficulty usually ranges from straightforward to moderate depending on access in the engine bay. Many replacements bolt in with standard hardware and use the factory electrical connector, so basic hand tools are often sufficient. If the sensor location is obstructed, additional disassembly may be required.
Will replacing the mass air flow sensor fix fuel economy issues?
Replacing a faulty sensor can improve fuel economy if the original sensor was providing inaccurate airflow data that caused rich or lean mixtures. However, fuel economy depends on several systems, so while sensor replacement often helps, it may not fully resolve economy issues if other components are affected.
How We Chose the Best Buick LaCrosse Mass Air Flow Sensor
We focused on components specifically intended for the Buick LaCrosse and prioritized technical accuracy over brand marketing. Selection criteria included fitment specification matching the vehicle mounting and connector type, electrical signal consistency under varying RPM and load, and construction quality to resist contamination and vibration. We also considered ease of physical installation, the clarity of wiring and connector documentation, and long-term serviceability such as sensor calibration methods. Excluded items were universal or generic sensors without LaCrosse-specific fitment data, units lacking documented electrical specifications, and parts intended only for performance modifications. The result is a list of options that meet the core technical needs of a Buick LaCrosse: correct mechanical fit, reliable airflow-to-signal conversion, durable construction, and straightforward installation and diagnostics.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a mass air flow sensor for a Buick LaCrosse, prioritize correct mechanical and electrical fit, consistent signal output, and resistance to contamination. These factors have the most direct impact on idle quality, throttle response, and reliable diagnostics. Balance ease of installation and serviceability with long-term durability. If you encounter diagnostic codes, rule out wiring and intake leaks before concluding the sensor is defective, and select a replacement that matches the LaCrosse specifications for a smoother, more reliable result.
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