Hi Autonerdz, it was more a case of wondering if I needed to take car NOT to do something untoward. To be honest I am using a none automotive USB scope at the moment, a Dataman 526 model http://www.dataman.com/dataman-526-150- ... scope.html
which is OK, but I am worried about blowing either it, or any vehicle ecu it's connected to, up. I am looking to buy a dedicated scope for automotive work, either USB or bench, as most jobs I do are in the shop, not out on the road. I have read that some USB and bench scopes have totally isolated and floating inputs, so I could measure say the cam sensor output of an engine on channel 1 and the AC mains at the wall outlet on channel 2 (to be ridiculous, and using an attenuator on channel 2) without risk of damage. I was wondering if the automotive Picoscopes had this. My knowledge of one of the odd ball vintage race ecus I get to look at is limited by what info is available, for some of the early stuff from Mugen and Zytek, this is not a lot. I'd hate to unknowingly create a ground loop and do one a mischief. Are floating, isolated inputs a good safety feature, or am I worrying needlessly? Thanks for your reply, a happy and healthy New Year to you.