OBD Code 06B7 on Subaru STI 2002: Troubleshooting Guide for Preparatory Diagnostic Codes
Hello, I recently received OBD diagnostic code 06B7 from my Subaru STI 2002's ECU, which appeared after the check engine light (OBD light) came on. The vehicle has undergone recent work including exhaust system replacement, fuel pump installation, and ECUTEK tuning. Despite these updates, I'm unable to find reliable information about code 06B7 in official documentation or online forums. This code is categorized as a preparatory diagnostic code, which typically indicates that the ECU is preparing for further diagnostics but hasn't yet detected a fault. I'm seeking expert advice on what this code might mean and whether it's related to the recent modifications or could point to an underlying issue with the vehicle's sensor system or fuel delivery. Any insights or guidance would be greatly appreciated. Best regards, Juanjo
It's recommended to consult a certified Subaru dealer, as code format 06B7 is not commonly documented in standard OBD-II resources. This type of preparatory code may require specialized diagnostic tools or knowledge specific to the STI model and its tuning history.