I hate these threads as they are so vague, but im getting a bit stumped. For people who dont like reading, key points are in bold We have a GT, that we took the engine out of, and now its back in. Everything is visibly plugged in. Whilst it was out we removed some sensors, and relocated the battery to the boot. The battery in the boot is earthed to the boot catch. The sensors we removed are: 1: The Panel of sensors above the ignitor 2. The Termistor looking thing, that is in the light loom 3. The sensor with two vacuum ports at the end of the injector/knock sensor wiring All of which im pretty sure arent important, but just to mention everything WE have fuel pressure at the rail, and it smells of fuel when trying to crank it. Also if we put a spark plug in the end of the HT lead then it sparks when earthed to the manifold. It sparks approx once a second. Is that too slow? The engine earth, there is only one, from the gearbox to the passenger side chasis leg. Although im sure it was like this before the engine came out and it worked fine. We definately have fuel at the rail, as we have pressure. but how can i test the injectors?