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Laupretrac

S3 help required non start issue

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😧  hi I’m new go forums and Audi’s as well I’ve got a s3 2003 model bam 225 I bought as a project All the front end was removed and all the wiring unplugged to get ready for the engine to be removed. That’s how I bought it. I removed the engine and fitted a set of forged Conrods then reinstalled the engine wired up what I need to fire the engine   It I can’t get any spark or injectors to open there’s no engine speed on diagnostic test but it’s not showing crank sensor fault. I fitted a new Bosch crank sensor but still the same  there’s a plug with four bl k weed on in front of the starter motor I can’t find a home for   Please can anyone help?

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Don't forget it could be an imobiliser issue. What lights up on the dash when you go to start it? 

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All the usual lights come on the key light comes on and goes off so I presume it’s reading the key. 

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