Thanks alot guys,
We go the car running today,and the fan can kick in, without the car stalling, i tried before we put the blobs on the solderpads, that if i keep the rpm over 1200rpm, the fan will not cause trigger errors.
But what we did as a quick sulution was to make the blob, so both the cas and cam lm1815, does not see the noise under 200mv(raised from the 45mv as oe),this was first tried and it helped alot, the problem is that the car was warm, and the trigger noise is more when cold, so i will not not fora sure til tomorrow morning.
We then made a pulldown on the second vr sensor 4,7kohm,but its not perfect, but my electronic friend would rather put a 15-20k ohm, on the other side of the 12kohm that is already on the board,
But that i dont no much about, but will get it better, when/if we get home from the Ring trip..
we did not have time to scop the signal today, as there was lots of other things to do before we leave at 6am tomorrow.
Thanks,
Skassa