87K views · 6.1K reactions | Well this closes the final chapter of the AC Diagnosis series. I learned so much it’s unreal, before this began I couldn’t even tell you what a high/low pressure switch even was I’ve been itching to start some new projects, so I’ll be doing the repair within a month or 2. Next up… back to the interior for a sec ;) #obsinteriors | 7.3 Queen | Facebook

How to Fix P0171 Code - Symptoms, Diagnosis, and Repair Tips - 1A Auto