P0442: Evaporative Emission Control System Leak Detected ... - AutoZone
If your EVAP system springs one, fuel vapors may seep out before your vehicle’s engine can incinerate them. Because noticing a leak without computer assistance can be challenging, the OBD-II scanner …
P0442 EVAP System Leak Detected (Small Leak): causes, symptoms, diagnostic
The code P0442 indicates that the engine computer (PCM) has detected a small leak in the EVAP system. Symptoms: With this code there might be no symptoms other than the Check Engine light. In …
P0442 Code? Here’s How to Fix It – Quickly and Easily
Jan 3, 2026 · A P0442 code indicates a small leak in the Evaporative Emission Control System (EVAP), which can cause decreased fuel efficiency and increased emissions. Common causes of a P0442 …
P0442 Code Meaning, Causes, Symptoms & Tech Notes
Aug 18, 2024 · The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). A loose fuel tank filler cap is the most common cause that will trigger …
P0442 – EVAP System Leak Detected (small leak)
Jan 29, 2025 · The P0442 code indicates a small leak in the EVAP system, which is primarily responsible for capturing fuel vapors. While it might not seem immediately critical, it can lead to …
P0442 Engine Code | Evaporative Emission Control System—Small Leak ...
Oct 14, 2024 · DTC P0442 warns of small evaporative emission control (EVAP) system leaks. A loose or bad gas cap is often to blame, but the trouble can involve a failing charcoal canister, a faulty purge or …
Code P0442 – Small EVAP Leak Detected: Meaning, Causes, Symptoms …
Apr 15, 2025 · Code P0442 indicates a small leak in your vehicle’s Evaporative Emission Control (EVAP) system. This system prevents fuel vapors from escaping into the atmosphere, playing a …
P0442 Control System Leak: Complete Troubleshooting Guide
Jul 17, 2025 · Getting a P0442 error code? Learn how to diagnose and fix this small EVAP system leak with our complete troubleshooting guide—perfect for DIYers and pros alike.
P0442 Evaporative Emission Control System Leak Detected (small …
How to easily diagnose, repair, and info on causes of a P0442 trouble code which indicates a small EVAP emissions leak has been detected.
Code P0442: Diagnostic and Repair Tips - Identifix
Symptoms of a P0442 Code Due to the nature of the miniature EVAP System leaks that cause DTC P0442, you’re most likely to be alerted by an illuminated check engine light. Using an OBD-II code …