2K views · 25 reactions | Have a cold start rough idle? Do you have a check engine light giving codes P050D or P219A? These codes can both appear when there are problems with your ignition system, or if your direct injected engine has carbon buildup on the intake valves. In this video, Andy shows you how to diagnose the problems triggering these codes, starting with the simplest test you can do yourself. | 1A Auto Parts | Facebook