High-Performance Fuel Injectors & System Component | Aftermarket Part – Page 2

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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 OEM reference number, and Federal vs. California emissions compatibility.

Q5: What's the difference between OEM and aftermarket ignition coils?

OEM: Same quality as the factory part; long-lasting.
High-quality aftermarket: Close to OEM 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 OEM. Are they really reliable?

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

About us

Automotive Leader started with a simple mission: to provide mechanics and DIYers with OEM-grade parts at affordable prices.

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 Return Policy / Return shipping is free.

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

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Fuel System Components

Find Parts by Vehicle

6Pcs Fuel Injector Set for Ford Expedition Transit Lincoln 3.5L V6 - FJ1138 BL3Z9F593A

4Pcs Fuel Injector for Suzuki Boulevard Intruder Volusia Motorcycle | 1571014G00 16450PLD003

4Pcs Fuel Injector for Toyota Camry Highlander RAV4 2.4L | 232500H060 2325028080

Fuel Injector for Audi A4 A5 A6 Q5 3.2L V6 (2008-2012) - 06E906036F FIJ0035

3Pcs Fuel Injector Set for John Deere Gator 825i UTV 3-Cylinder | 5WY2404A MIA11720

2Pcs Fuel Injector for Harley Davidson Touring Electra Glide & Ducati - IWP162 27609-01B

6Pcs Fuel Injector Set for Honda Gold Wing GL1800 Motorcycle | 16450MCA013 16450MCA003

2Pcs Fuel Injector for Polaris RZR 900 ACE 570 UTV (0280158258) - 2521068

4Pcs Fuel Injector for Mercury Outboard 40HP-60HP 2-Stroke Marine | 25335288 892123002

4Pcs Fuel Injector Set for Hyundai Elantra Kia Forte Soul 1.8L - 35310-2E000 FJ1182

Fuel Injector for Ford Escape Fusion 1.5L EcoBoost (2014-2020) | DS7Z9F593DA FJ1235

4Pcs Fuel Injector Set for Ford Escape Fusion 1.5L EcoBoost - DS7Z-9F593-DA FJ1235

6Pcs Fuel Injector Set for Lexus IS250 GS300 2.5L V6 (06-13) | 23209-39055 23209-31020

4Pcs Fuel Injectors Nozzles for Chevy Equinox Malibu Camaro Traverse GMC Terrain Cadillac ATS CTS 2.0L 2.5L | 12671568 0261500420

Fuel Injectors Nozzles for 2016-2020 Chevy Malibu Premier Sedan 2.0L Turbo | 12662571 12631971 12671568

4Pcs Fuel Injectors Nozzles for Chevy Impala Colorado Malibu Cadillac ATS GMC Canyon 3.6L | 12627093 12662564

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

4Pcs Fuel Injectors for Toyota 4Runner Tacoma T100 2.7L L4 3RZFE (1996-2000) | FJ377 2325075050

4Pcs Fuel Injectors for Nissan Versa 1.6L L4 HR16DE (2009-2011) | FJ1075 16600-ED000

4Pcs Fuel Injectors for Toyota Pickup 4Runner Hiace 2.4L 3.0L (1989-1995) | 23250-75060 23209-79105

4Pcs Fuel Injectors Nozzles for Mazda 2 GS GX Sport Touring 1.5L (2011-2014) | FJ1194 297500-0460

4Pcs Fuel Injectors Nozzle for Toyota Avalon Camry Highlander Sienna Tacoma 3.5L V6 (2016-2019) | 23250-0P090 FJ1407

4Pcs Fuel Injectors for VW CC Eos GTI Tiguan Golf Beetle Jetta Passat Audi A3 A4 Q5 2.0T | 06H906036G

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

Fuel System Components

Find Parts by Vehicle

6Pcs Fuel Injector Set for Ford Expedition Transit Lincoln 3.5L V6 - FJ1138 BL3Z9F593A

4Pcs Fuel Injector for Suzuki Boulevard Intruder Volusia Motorcycle | 1571014G00 16450PLD003

4Pcs Fuel Injector for Toyota Camry Highlander RAV4 2.4L | 232500H060 2325028080

Fuel Injector for Audi A4 A5 A6 Q5 3.2L V6 (2008-2012) - 06E906036F FIJ0035

3Pcs Fuel Injector Set for John Deere Gator 825i UTV 3-Cylinder | 5WY2404A MIA11720

2Pcs Fuel Injector for Harley Davidson Touring Electra Glide & Ducati - IWP162 27609-01B

6Pcs Fuel Injector Set for Honda Gold Wing GL1800 Motorcycle | 16450MCA013 16450MCA003

2Pcs Fuel Injector for Polaris RZR 900 ACE 570 UTV (0280158258) - 2521068

4Pcs Fuel Injector for Mercury Outboard 40HP-60HP 2-Stroke Marine | 25335288 892123002

4Pcs Fuel Injector Set for Hyundai Elantra Kia Forte Soul 1.8L - 35310-2E000 FJ1182

Fuel Injector for Ford Escape Fusion 1.5L EcoBoost (2014-2020) | DS7Z9F593DA FJ1235

4Pcs Fuel Injector Set for Ford Escape Fusion 1.5L EcoBoost - DS7Z-9F593-DA FJ1235

6Pcs Fuel Injector Set for Lexus IS250 GS300 2.5L V6 (06-13) | 23209-39055 23209-31020

4Pcs Fuel Injectors Nozzles for Chevy Equinox Malibu Camaro Traverse GMC Terrain Cadillac ATS CTS 2.0L 2.5L | 12671568 0261500420

Fuel Injectors Nozzles for 2016-2020 Chevy Malibu Premier Sedan 2.0L Turbo | 12662571 12631971 12671568

4Pcs Fuel Injectors Nozzles for Chevy Impala Colorado Malibu Cadillac ATS GMC Canyon 3.6L | 12627093 12662564

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

4Pcs Fuel Injectors for Toyota 4Runner Tacoma T100 2.7L L4 3RZFE (1996-2000) | FJ377 2325075050

4Pcs Fuel Injectors for Nissan Versa 1.6L L4 HR16DE (2009-2011) | FJ1075 16600-ED000

4Pcs Fuel Injectors for Toyota Pickup 4Runner Hiace 2.4L 3.0L (1989-1995) | 23250-75060 23209-79105

4Pcs Fuel Injectors Nozzles for Mazda 2 GS GX Sport Touring 1.5L (2011-2014) | FJ1194 297500-0460

4Pcs Fuel Injectors Nozzle for Toyota Avalon Camry Highlander Sienna Tacoma 3.5L V6 (2016-2019) | 23250-0P090 FJ1407

4Pcs Fuel Injectors for VW CC Eos GTI Tiguan Golf Beetle Jetta Passat Audi A3 A4 Q5 2.0T | 06H906036G

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