I wanted to take a minute to mention 2 things that have happened while I have had my Pico Quad Automotive kit. Within the last 2 weeks, I have had occasion to see the Pico Quad Module show inaccurate voltages on all
4 channels. I was doing a road test monitoring coil input voltage on channel A among other things with the Pico and noted it was lower than it should be (vehicle is 1990 Ford F250 w/ 5.8 EFI system). The input voltage is supposed to be very close to battery voltage but ends up being approximately 8 volts.
It gets "better" from here. That night, I tested all of the leads on all of the channels. The more leads I connected between my battery and Pico module just to see what all the channels read, the closer they all got to 0 volts (in fact with all leads connected, 0 volts was read in all the measurement boxes).
I captured what was on the screen and sent it to Tom Roberts @ Autonerdz. He had never seen this before and suggested I try a different PC, USB cable and check all of the other leads I have. There was no change in the readings with any of the above changes I made. Tom, then, wanted to see this module so I sent it to him. (Now enters the intermittent part!) It worked perfectly for him!
I am embarrased and Tom now is trying to see the module when it isn't working properly being fairly well convinced the module is at fault. He has graciously loaned me a Pico Quad module to use while mine is on its way to the Pico factory to be disected. Thanks to Tom @ Autonerdz for his first class service AFTER the sale. I have known Tom for the last 4 or 5 years and have found him to be willing to assist his customers from interpretting the Pico waveform for a novice to dealing with problems such as mine. Thanks Tom!
PS... The loaner is working perfectly!