Got a call today from someone who's having trouble with logging their LM1. They have the external voltage pids selected and have checked the analog wires with a volt meter (seeing 5v). But, somewhere between the connector and the laptop, it's not picking it up (reads 0v IIRC). Does this sound like it's a problem with the cable? The suggestion of using a serial cable came up. Not sure if he'll move to that in the mean time.
Any ideas?
