Well, so much for buying a 'genuine Vauxhall crankshaft sensor from a genuine Vauxhall dealer that you have to genuinely walk into...' My 2.6 began being intermittently reluctant to fire recently, although would crank forever. No EML, so I changed the crank sensor with brand new boxed (sealed) genuine GM sensor bought from Vauxhall. After fitting, it cranked and fired virtually straight way. Happy Days, I thought. Turned off, and after putting the tools away, decided to go for a test drive. Same symptoms
- would crank for ever and a day, but not fire. Checked sensor was fitted in the block square, removed it to make sure no contaminants had got onto it, refitted it, but still nothing. Decided to remove a known used Bosch sensor from a 3.2 which was running well before being laid up for spares (rotten front chassis rails) a few years ago. Fitted it, and it has started everytime. After several test runs, all is well, starting first turn everytime.
I realise sometimes parts are faulty, but you wouldn't expect it from a genuine Vauxhall part bought from a genuine Vauxhall dealer that you .......etc etc............you know what I'm saying.
I heard that at some point there was a faulty batch, but this may be fiction?