Optima & Magentis (Canadian) 2.7L
Turn ignition off. Disconnect TP sensor 3-pin harness connector. Connect a digital voltohm meter (DVOM) set to ohms, between TP sensor terminals No. 2 and 3. See Fig 1. Insert a 0.0256" (0.65mm) thick feeler gauge between the fixed SAS and throttle lever. See Fig 2. Loosen TP sensor mounting bolts and turn fully counter clockwise. In this position check there is continuity between terminals No. 1 and 2. Slowly turn TP sensor clockwise until no continuity exists between terminals No. 2 and 3. Tighten mounting bolts to 14-22 INCH lbs. (1.5-2.5 N.m), reconnect sensor connector. Backprobing TP sensor harness connector, connect a DVOM between TP sensor terminals No. 1 (sensor output) and No. 2 (sensor ground). See Fig 3. Turn ignition on. Do not start engine. Measure voltage with throttle in idle position. Voltage should be 250-800 millivolts. If voltage is not as specified, replace TP sensor and repeat test. Remove feeler gauge after adjustments. Turn ignition off.