ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product

will help if there is ever a warranty issue with your product and helps the MSD R&D team create

new products that you ask for! Go to www.msdperformance.com/registration.

Atomic TBI Throttle Position Sensor Module

PN 2939

Parts Included:

1 - TPS Module

1 - Parts Bag

OVERVIEW

The Atomic TBI Throttle Position Sensor Module is designed for use with the MSD Atomic Throttle

Body Fuel Injection system. It connects inline to the Atomic TBI communication network and provides

a common 0-5 volt throttle position output signal that is required for the operation of an electronic

overdrive transmission or other accessory.

CARB Compliant Atomic TBI Installation: The Atomic TBI system has been granted Executive Order

number D-722 which deems it legal to install on 1987 and older GM passenger vehicles and trucks

that were originally equipped with a carburetor and V8 engine. During a CARB Compliant installation,

the factory ECU remains in place to operate the ignition timing and AIR Pump system. In order for

the OE systems to function properly, a TPS signal is required. The outputs of the TPS Module will

provide the correct signals for the factory ECU and is required during any CARB compliant Atomic

TBI installation (see Figure 3).

The Atomic TPS Module has two output wires that must be connected:

• Yellow – 0-5 volt TPS signal

• Black – Ground reference

Figure 1 Atomic TBI TPS Module.

®

TPS MODULE

PN2939

0-5 VOLT TPS SIGNAL OUTPUT

YELLOW

BLACK

TPS GROUND REFERENCE

THROTTLE BODY HARNESS

TO ATOMIC POWER MODULE