Discussion Starter · #1 ·
Hey guys, we are getting fault codes concerning our fuel rail. The codes are 385: Fuel leakage detected during low idle. 386: Fuel leakage detected by quantity balance. 391: PRV recognised as open. We started getting the codes and they got more frequent throughout the day. We get a lot of black smoke and then a fault code appears and de-rates the engine. We cant even drive 100 yards and a code will appear. We have been sitting for 4.5 days now and still have the dealer stumped. We changed the fuel rail sensor, the PRV on the fuel rail, and the filters. Any suggestions would sure be appreciated.