HUDScreen category: OBD2 & Diagnostics
P0420 is one of the five most common OBD2 codes on the road today, and one of the most misunderstood. Here is everything you need to know before spending a single dollar. What P0420 means P0420 stands for “Catalyst System Efficiency Below Threshold (Bank 1).” The ECU uses two oxygen sensors — one before and […]
An OBD2 trouble code (DTC — Diagnostic Trouble Code) is your car’s way of flagging a problem it detected. The format is always a letter (P/B/C/U) plus four digits. Here are the 15 codes mechanics see most often and what to do about each. Look up any code instantly with the OBD2 Code Lookup tool. […]
The OBD2 port (On-Board Diagnostics II) is a 16-pin socket fitted under the dashboard of virtually every car sold in the United States since 1996. It gives you direct, real-time access to your engine’s computer. Why every US car has one Congress mandated OBD2 from the 1996 model year to let mechanics and regulators read […]
Installing an OBD2 HUD is genuinely a five-minute, plug-and-play job — no cutting, no wiring, no tools. Here is exactly how to do it. What you need Your OBD2 HUD unit and its OBD2 cable A car built in 1996 or later (US) with an OBD2 port Five minutes parked safely Step 1 — Find […]