This store implements a 30-day return and exchange policy.
Our goal is for every customer to be completely satisfied with their purchase. If you have any concerns, please let us know at any time. We will do our utmost to resolve the issue together with you.
When will I get my order?
Orders may arrive as soon as the same day, or within three days at the latest.
We will ship your order promptly. Once dispatched, you will receive an email with detailed tracking information. Delivery times vary depending on your location.
Where are your products manufactured?
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
How much does shipping cost?
Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.
🚦 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
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
Engine size
We’ll confirm:
Upstream or downstream
Correct connector
Proper OEM reference number
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
