MSD 2939

Give your accessories the spark of life with an MSD Atomic TBI Throttle Position Output Module. Provides 0-5V TPS signal for an electronic overdrive transmission and other accessories. Plugs in-line to your existing MSD Atomic TBI EFI System. This features means you don. Granted Executive Order number D-722, which deems it legal to install on 1987-and-older GM vehicles. Factory ECU remains in place during a CARB-compliant installation to operate the air pump system and ignition timing. Outputs provide the correct signals for the factory ECU. Your MSD TBI Throttle Position Output Module requires a throttle position signal and carries a limited warranty Atomic TBI. Plugs in-line to the Atomic TBI EFI system and delivers a universal 5-volt output signal that is required for electronic transmission controllers and other accessories.-MSD Atomic TBI Throttle Position Output Module