showing p0123 on 2003 Jeep Wrangler

rough idling and sometimes wont pull. lacks power

by in Clinton, IA on December 25, 2012
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1 answer
ANSWER by , January 01, 2013
REPLACE IT SYMPTOM P0123-THROTTLE POSITION SENSOR VOLTAGE TOO HIGH WHEN MONITORED With the ignition on and battery voltage above 10.4 volts . SET CONDITION Throttle Position Sensor signal voltage at the PCM goes above 4.5 volts for 3.2 seconds . POSSIBLE CAUSES •TP sensor sweep •TP sensor •Intermittent condition •(K22) TP sensor # 1 signal circuit shorted to voltage •(K22) TP sensor # 1 signal circuit open •(K22) TP sensor # 1 signal circuit shorted to (K7) 5-volt supply circuit •(K4) sensor ground circuit open •PCM