One of the first things I ran across in my search for answers was a company called "New Rockies" who make a magic-dingus box that promises to solve all of ( our) VATS problems for ever and ever. But the gist I get from the various sources and differences in tech articles on the subject also makes me think that there could be more than one ghost in the machine. The resistor I put in the circuit allowed it to start and run, and the truck continues to start and run. One thing the articles and YouTube videos typically had in common was that they all ended with something along the lines of: if none of that works, you'll just have to take it to the dealer. One article just flat-out said to use a 2.2k ohm resistor in the circuit. Some say to measure the resistance between the signal and ground leads, then swap polarities, then take an average of the two to arrive at your required resistor value. Some say the car has to be started, some not. In troubleshooting the problem, most of the sources I'd run across with "fixes" or workarounds for a failed PASSlock system were/are basically "try this, and if that doesn't work, try that" and typically included a collection of schematics which run the gamut from a single resistor to a circuit block with one to three relays, resistors, and maybe a diode or two for good measure. The previous owner gave up on trying to make it run after having spent a small fortune on replacing ignition and fuel components, but I got it to start and run with a little research, patience and a 2.2k resistor. I recently acquired a 1998 Chevy Silverado K3500 crew cab. As I stated in my introduction, I am new here so please forgive me if this topic has been hashed-out ad nauseam.
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