2.6 V6 Estate, I didn't really need it but have purchased from Terbs with a known starting problem, to see if I can save it from the scrapper.
When I picked it up, it started first time, remained running, and went home like it had been stung. I stopped at Tesco's en route, and she started without hesitation when I came out.
The following day, I started it up to move it on the drive, and again it started fine. Because my mind was elsewhere, I forgot to let it get a bit warm before turning it off, and killed the engine after it had only run for a very brief period.
The next day, it wouldn't start. Cranked, wouldn't fire.
I thought perhaps, I'd flooded it, so left it 48 hours. Still didn't start. Cranking at WOT didn't make any difference.
Today I fitted the spare crank sensor Terbs gave me - a used genuine one from the Omega spares outfit near heathrow. Had to do it from above, as the car was on grass
Still no difference, won't go.
The tank is over half full, and with the fuel feed line removed from the rail, it spurts fuel upon turning the ignition, so I don't think there's a fuel issue.
Testing has shown however, there's no spark at any of the plugs on the 1-3-5 bank when cranking, and I suspect 2-4-6 is the same.
The original crank sensor was pattern, fitted a year ago, so was prime suspect. I wonder if I'm just unlucky, and the replacement is also goosed? (There is evidence of where it's been crimped behind oil cooler pipes, so it's likely to be an old one, and removal/transit may well have finished it off).
My obvious next step is to fit a new GM crank sensor, unless anyone has any other ideas about what would cause lack of spark?
I should add, no codes stored either before or after sensor change.
Cheers