Hi guys, Hope someone can point me in the right direction. I've done a few searches but didn't find anything which seemed similar to my issue. Issue: My A3 (AGU) is cranking but not starting 95% of the time When I put the key into start position before firing I've noticed the climate control in the center console doesn't light up, air bag light stays on, parking light is dim, no noise from TB or fuel pump. Also No connection to ECU through Vag Com when this happens. The 5% of the time when it does fire, the climate control in the center console does lights up, I'm able to connect to ECU, no fault codes. While it's on I've checked the Measuring Blocks and all seems fine. MAF sensor reading ok Crank sensor is reading, I've read this can cause issues with starting but there is definitely an RPM signal Coolant temp sensor - ok (slowly rising temp as car idles) Battery is pretty much new (2 months), also seems like the alternator is working well - read around 14V while it's on. Starter motor is fine, the car turns on without struggle I'm thinking it might be one of the following 1. There might be something up with the ignition switch? 2. Power to ECU possibly? Where is the power supply Relay for the ECU on our cars? (98 AGU 1.8t) Some 1.8t's have a few relays at the back of the engine bay (relay J271 (100) for ECU power supply), all i have here is the fuel injection barometric pressure sensor. If anyone has any ideas what I should check please let me know Cheers!