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  • thecardoc3 10/22/11 11:43 am PST

    A 93 Vats system key chip is simply a resistor. You can measure the resistance with an ohm meter and then use a chart to select the key number. However, if you are getting that heavy click from the solenoid, then the VATS system is not at fault for your no-start. You need to find out if you are losing full power or ground during cranking by measuring the voltage drops on those circuits during a failure event. If you don't measure and prove that an excessive voltage drop is occurring on those cables (POSITIVE AND NEGATIVE) then you are in fact still looking at a starter issue.

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