Fleetwood FWD V8-300 4.9L (1993)
Diagnostic Flow Diagram - Part 3 Of 3
ADJUSTING TPS
NOTE: Engine should be at normal operating temperature. This adjustment should only be performed when the TPS has been replaced or when
required to do so by diagnostic tests.
1.
Turn the engine "OFF", key "ON". Enter diagnostics and select PCM/ECM override E.5.3, ISC Motor. Press the "Cooler" button on the Electronic
Climate Control (ECC) to retract the ISC motor to the minimum air setting. The FDC will change from "50" to "00". The ISC motor will slowly
retract (about 20 seconds) to a fully retracted position. Verify that the throttle lever is resting on the minimum idle speed screw. With the ISC