If I understand correctly you can vape with the voltmeter between the Carto and the Tox, just no reading on the meter? If not that scenario does you atty work on the Tox, no meter? Does the Tox work with anything? Does the meter work on anything else? Don't know what you mean by "bad head"? (Haven't had that problem since I quit drinking.) :
Errol
rofl.. teach me to ask whilst on pain meds. Sorry about that! Ok, lemme try again.
*BTW, 'bad head' means one of the original run tox controller heads (where all the electronics live), which have programming error or some such, so they don't hold voltage above a certain level, etc... ie: need to be replaced.
*Meter works on everything else. Tried it on a few boxmods at multi voltages, egos etc. Only other times in the past that I've gotten no reading on it are when I basically have nominal voltage, such as dial being way under 3.2v on my vv boxmod. Meter definitely works. Normally it takes a second with the digital numbers whirling around, then gives me a reading.
*Tox head seems to function pretty normally up to about 4.2v. No prob with attys on it, or cartos or anything till I try to push it over that low 4ish level. DOES however misfire a ton, and other issues, like fire cuts in and out during a hit... odd stuff like that. Its definitely malfunctioning, but vapable for the most part, at low voltages. Basically, exactly the same probs lots of the first run tox heads have. I just haven't gotten mine replaced, yet. However, I'm getting good fire on the hits I'm trying to measure, just seeing no reading on the voltmeter.
*Yes, can vape just fine with meter on the tox... I just don't get any reading whatsoever on the voltmeter. I'm getting no whirling numbers on the meter, no reading, nothing, on what seems to be a good 4v hit. No dig readout whatsoever. However, I know based on 3yrs experience that I'm getting about a 4ish voltage vape out of it, plus doing a direct comparison on a VV box with same carto, same juice, same voltage. I'm about 98% certain its putting out somewhere right around 4v, maybe 4.1 or 4.2, but not seeing anything on the voltmeter.
Hope that's clearer. Now does that ring any bells, off hand, for anyone? I can't for the life of me figure out what's going on, but then my basic electrical theory is sadly lacking.

My concern over all this is I'm trying to figure out if this is because I just have a malfunctioning controller head currently, or if its likely to do the same thing once I get the kit replaced with the corrected controller. I plan to do some extensive voltage testing to make sure the new controller functions up to the limits of its tech specs, and don't know how to accomplish that if the Tox is incompatible with voltage meter.