I'm putting one of my gti6 back on the road and it won't start. Turns over but no spark and no pulse on injectors. Any Ideas please? It's been sat for 3 years and over that time it's had some bits robbed for my rally car which I've now just replaced with new - including new crank sensor and new dual relay behind battery box. It has 2 keys - which both operate central locking etc fine. Fuel pump primes. Tried disconnecting under rear seats. Double checked new crank sensor - that's fine. I'm thinking immobiliser but would welcome any bright ideas!