The DTC code P0284 in a Honda vehicle is a sign that the onboard computer has registered the following anomaly:
"Cylinder 8 Injector Circuit High"
Although this is a standardized OBD2 code, the symptoms and the location of the faulty sensor can vary depending on the exact model of your Honda (year, engine type, etc).
Instead of changing parts blindly, use the CarWatch AI assistant. Scan your Honda's sensors in real-time and find out the root cause of the P0284 fault before going to the shop.
👉 Diagnose my Honda for FreeTo clear the engine light and read the P0284 code from your phone, you need an OBD2 adapter compatible with the Honda ECU.
🛒 View Compatible Scanner on Amazon