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Engine Sensors & Electronics

Your vehicle's electronic systems are the brain of the engine. From MAF flowmeters to ABS speed sensors, we offer a vast range of diagnostic and engine management electronics. Our parts deliver accurate data to your ECU, ensuring smoother operation, safer braking, and pinpoint accuracy for your vehicle's electronic systems.

（ MAF, Nox, ABS, EGT, Parking etc.）

💡 Note: Our vehicle fitment database is massive. If dropdowns don't respond immediately, please wait a few seconds.

FAQ & Support

🚦 1. Trouble Codes & Symptoms

Q1: My car shows codes like P0420 / P0171 / P0138. What do they mean?

These are common codes related to the fuel system or oxygen sensors:

P0420: Catalyst efficiency below threshold
P0171: System too lean
P0138: O2 sensor voltage high

They often indicate a worn oxygen sensor, exhaust leak, or ignition issue. If you're not sure, simply tell us your year, make, model, and engine—we'll check the exact part you need.

Q2: My engine shakes at idle. Is my ignition coil bad?

It's very possible. Common symptoms of a failing ignition coil include:

Rough idle or shaking
Hard cold starts
Poor acceleration
Higher fuel consumption
Misfire popping noise

Tell us your vehicle info—our team can help you identify the cause.

Q3: What are the symptoms of a bad oxygen sensor?

Typical signs include: Check Engine Light on, Increased fuel consumption, Poor acceleration, Strong fuel smell, and Slow throttle response.

Most sensors should be replaced every 80,000–100,000 km.

🔍 2. Fitment & Compatibility

Q4: How do I know which oxygen sensor fits my car?

Just provide: Year, Make, Model, and Engine size.

We'll confirm: Upstream or downstream, Correct connector, Proper reference number, and Federal vs. California emissions compatibility.

Q5: What's the difference between ignition coils?

High-quality aftermarket: Close to Standard but more affordable.

We only offer high-grade, reliable ignition coils.

Q6: How many oxygen sensors does my car have?

Most vehicles have 2–4 sensors (Upstream front and Downstream rear). We can confirm the exact number for your vehicle.

🛒 3. Buying, Quality & Concerns

Q7: Are cheap oxygen sensors reliable?

They work for a short time but usually cause issues like short lifespan, slow response, and frequent check engine lights.

We only sell new, high-quality, fully tested sensors.

Q8: How can I avoid buying a refurbished or used auto part?

Check for scratches on the connector, dirty wiring, or marks on threads.

Our parts are 100% brand new, never refurbished, and fully tested.

🧰 4. Installation & Usage

Q9: Can I install an oxygen sensor myself?

Yes. Difficulty: medium.

You'll need an O2 sensor socket, Anti-seize compound, and a Torque wrench. We recommend clearing fault codes with an OBD scanner after installation.

Q10: Do ignition coils need programming after replacement?

In most vehicles, no programming is required. Just swap the old coil with the new one.

💰 5. Value & Performance

Q11: Your parts cost less than Other accessories. Are they really reliable?

Yes—our parts use the same-grade materials and testing standards as suppliers. Because we don't go through dealer channels, the price is much more affordable.

About us

Since its inception, Automotive Leader has been guided by a simple mission: to provide high-performance aftermarket parts for automotive technicians and DIY enthusiasts.

The website is jointly operated by Trademark Name: Automotive-leader Store registered at Physical Address: Room 602, No. 152 Helong East Road, Helong Subdistrict, Baiyun District, Guangzhou City Postal Code: 510000 and Company name：BLUE STAR TRADING LIMITED registered at Company address：RM C，6/F，WORLD TRUST TOWER 50 STANLEY STREET CENTRAL HK

U.S. Address:
7600 LTC Parkway 34986
PORT SAINT LUCIE, FL - United States

Phone Number: +86 15812449181

Email: support@automotive-leaderstore.com

Logistics Policy

1. U.S. Warehouse (Standard Option)
Handling time: 1-3 business days
Transit time (days): 3-6 business days via USPS/UPS/FedEx.

2. China Warehouse (Standard Option)
Handling time: 1-3 business days
Transit time (days): 14-22 business days via USPS/UPS/FedEx.

Refund and Return Policy

30-Day Returns and Refunds / Return shipping is free（Due to a product issue）

We do not accept direct exchanges.

After receiving and inspecting your returned item, we will notify you whether your refund has been approved.

If approved, the refund will be processed back to your original payment method within 5 business days.

Please note that your bank or credit card company may also require additional time to process and reflect the refund.

If you have not received your refund within 10 business days after your return request has been approved, please contact us.

Contact: support@automotive-leaderstore.com

Account

Engine Sensors & Electronics

Filters

Suitable for 6Pcs Fuel Injectors Nozzle for Buick Allure LaCrosse Cadillac CTS SRX Chevy Equinox GMC Terrain 3.0L 3.6L | 12629927 FIJ0030

Fuel Injectors Nozzles for Chevy Equinox Malibu Cruze Encore GMC Terrain Buick Encore 2.4L Ecotec | 12644767 FJ1293

Suitable for A0009059112 Nox Sensor

Upstream Nitrogen Oxide NOx Sensor for VW Touareg Audi Q7 A6 A8 TDI Diesel (11-15) | 059907807C 5WK96637B

Nitrogen Oxide NOx Sensor for BMW X5 335d 535d 740Ld xDrive 3.0L Diesel (09-17) | 13628589846 5WK96699C

Downstream Nitrogen Oxide NOx Sensor for BMW 328d xDrive 2.0L X5 xDrive35d 3.0L (14-17) | 13628589844

Nitrogen Oxide NOx Sensor for Ford F-250 F-350 F-450 Super Duty 6.7L V8 Diesel (11-12) | BC3Z9D378G

NOx Sensor for Audi A4 Seat Alhambra VW Sharan 2.0L TDI (2007-2012) | 8K0907807E 5WK96688

NOx Sensor 8-Wire for Mercedes Sprinter 2500/3500/E250/ML250/GL350 BlueTEC (14-16) | A0009053503 5WK96682D

Suitable for 4Pcs Fuel Injectors for Buick LaCrosse Regal Chevy Equinox GMC Terrain 2.4L (10-17) | 12633784 FJ1154

FAQ & Support

🚦 1. Trouble Codes & Symptoms

🔍 2. Fitment & Compatibility

🛒 3. Buying, Quality & Concerns

🧰 4. Installation & Usage

💰 5. Value & Performance

About us

Logistics Policy

Refund and Return Policy

Country/Region

Country/Region

Engine Sensors & Electronics

Filters

Suitable for 6Pcs Fuel Injectors Nozzle for Buick Allure LaCrosse Cadillac CTS SRX Chevy Equinox GMC Terrain 3.0L 3.6L | 12629927 FIJ0030

Fuel Injectors Nozzles for Chevy Equinox Malibu Cruze Encore GMC Terrain Buick Encore 2.4L Ecotec | 12644767 FJ1293

Suitable for A0009059112 Nox Sensor

Upstream Nitrogen Oxide NOx Sensor for VW Touareg Audi Q7 A6 A8 TDI Diesel (11-15) | 059907807C 5WK96637B

Nitrogen Oxide NOx Sensor for BMW X5 335d 535d 740Ld xDrive 3.0L Diesel (09-17) | 13628589846 5WK96699C

Downstream Nitrogen Oxide NOx Sensor for BMW 328d xDrive 2.0L X5 xDrive35d 3.0L (14-17) | 13628589844

Nitrogen Oxide NOx Sensor for Ford F-250 F-350 F-450 Super Duty 6.7L V8 Diesel (11-12) | BC3Z9D378G

NOx Sensor for Audi A4 Seat Alhambra VW Sharan 2.0L TDI (2007-2012) | 8K0907807E 5WK96688

NOx Sensor 8-Wire for Mercedes Sprinter 2500/3500/E250/ML250/GL350 BlueTEC (14-16) | A0009053503 5WK96682D

Suitable for 4Pcs Fuel Injectors for Buick LaCrosse Regal Chevy Equinox GMC Terrain 2.4L (10-17) | 12633784 FJ1154

FAQ & Support

🚦 1. Trouble Codes & Symptoms

🔍 2. Fitment & Compatibility

🛒 3. Buying, Quality & Concerns

🧰 4. Installation & Usage

💰 5. Value & Performance

About us

Logistics Policy

Refund and Return Policy