Hello all, My girlfriend has bought an 2002 audi a3 1.8t aum engine and has a random start up problem. The problem is very rare, maybe just twice per month, but when it happens, when she starts the engine, it stutters very violently, like it-s about to blow up. Sometimes the engine dies and she has to restart the engine and everything is perfect. Sometimes the engine is barely running, but after 5 seconds it recovers and the engine runs well. She always waits till the fuel pump in tank shuts off, then switches on the engine. There are no fault codes stored. This issue is only when its starting the engine. There are no issues while the engine is running, idle is fine, pulls like a train... Appreciate your help!