Throttle Position (TP) Sensor Adjustment

Warm up engine to normal operating temperature.
Check to make sure that fast idle cam and cam follower lever are not in contact with each other. If they are, check fast idle control system.
Loosen TP sensor screws.
Remove ECM (PCM) cover from bracket.
Turn TP sensor (1) clockwise or counterclockwise and tighten TP sensor screw at a position where voltage as specified below is obtained at coupler terminal C51-3-12.
NOTE: If SUZUKI scan tool and cartridge are available, make an adjustment by using SUZUKI scan tool while observing TP sensor voltage.

TP sensor voltage when throttle is fully close: 0.35 - 0.65 V

Tightening torque
1. TP sensor screw (a): 2.5 N.m (0.25 kg-m, 1.8 lb-ft)
Check to make sure that when throttle is fully open TP sensor voltage is as shown below.
1. TP sensor voltage when throttle is fully open: 3.5 - 4.5 V
Fig 1: Adjusting TP Sensor
Courtesy of SUZUKI OF AMERICA CORP.
Install ECM (PCM) cover.
Disconnect negative cable at battery for 30 seconds or more and connect negative cable at battery.