Hi all, got a problem with my ignition. Done a spark plug test by fitting an old plug to one of the ht leads and resting it on the cam cover. When I turn the engine over I get a real weak flash once or twice and thats about it. Firstly is the cam cover a good enough ground for this test, and if so what could be causing the weak spark? I've recently changed the crank sensor, phase sensor, distributor cap, rotor arm and ignition module, but same problem still exists. Any advice much appreciated.