If your Peugeot is displaying the P306D fault code, you're likely dealing with a "coherence" error in the intake system. Specifically, this code indicates a mismatch between the throttle housing (air mixer) position and the inlet air pressure measured by the computer.
Case 2 – 2015 Peugeot Boxer van Intermittent P306D with no performance loss. A dealer ECU update resolved a known software bug. The owner spent only $150 and the van has been fault-free for 30,000 miles. p306d peugeot fixed
: The car disables driver aids because it can't trust the throttle data. Intermittent EML If your Peugeot is displaying the P306D fault
, you’re staring at one of the brand's more specific, yet elusive, "coherence" issues. A dealer ECU update resolved a known software bug
Solving the P306D Error: A Guide for Peugeot Owners If you own a modern Peugeot—especially a 308, 3008, or 5008 with a petrol engine—seeing a "Check Engine" light alongside a cryptic P306D fault code can be frustrating. This error is often linked to the car’s fuel vapor management system and can cause symptoms ranging from a minor warning light to the deactivation of your active cruise control. What is Error P306D?
Fuel System De-aeration & Primer Bulb Upgrade