ive just put a vr lumnp in my gti. everything is done for the engine to fire, but it wont. its turning and im sumtimes getting spark, im getting fuel and air too. ive changed the engine loom over during the swap (lights, central locking works the lot, feul pump aswel). i was wondering cpuld it be the imobilizer on the vr6 loom not working? and will i need it cancelling out by an auto elctrian?