Does it stay off for months on end, then when you think "I should do the unplug, plug back in just in case" the MOT tester has the knack of getting it to spring back into life.
Oh the red wonderfulness of it.
Luckily doing the hokey kokey and it stayed out and a quick retest and pass.
Not like it did exactly the same last year!
I was amazed at the opacity test. Last year it was 0.51. This year after some injector cleaner and a good run and it was 0.08!
