Engine Operation - Except 4.5L Engines NOTE: To adjust preset fast or slow speeds with adjustable High-Low Speed Select Rocker Switch: 1. Select middle position (ADJ) or slow (turtle) position on the optional Adjustable Three-State Speed Select Rocker Switch (A). 2. Press and hold top or bottom half of Bump Speed Enable Rocker Switch (B) while using Speed Select Rocker Switch (C). 3. Use Speed Select Rocker Switch (C) to bump engine speed up (+) or down (-). NOTE: Slow (turtle) position is factory preset at low engine idle, while middle (ADJ) position is factory set at high engine idle. NOTE:
Once the speed has been set, the Bump Speed Enable Switch (B) must be pressed and released three times within two seconds to commit the new slow or fast speed to memory. If not done, the engine’s new slow or fast speed will only be effective until the key is shut off. Then the speed will revert to its previous setting. Changing engine speed using optional analog potentiometer throttle (D) NOTE: Pushing in on analog potentiometer will immediately take engine to slow idle speed. 1. Set High-Low Speed Select Rocker Switch (A) to low speed position. 2. Turn potentiometer throttle clockwise to increase speed or counterclockwise to decrease speed. NOTE:
Engine Control Unit (ECU) reads the higher of the High-Low Speed Select Rocker Switch or the Analog Throttle(s) Speed Settings. With High-Low switch at low speed, Analog Throttle(s) will control speed higher than low idle setting. Continued on next page OURGP11,000023F –19–21OCT03–2/3 19-14 021604 PN=112