rough idling and sometimes wont pull. lacks power
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2003 Jeep Wrangler Question: showing p0123
Answer #1joefixit January 01, 2013, 22:49Enthusiast
P0123-THROTTLE POSITION SENSOR VOLTAGE TOO HIGH
With the ignition on and battery voltage above 10.4 volts .
Throttle Position Sensor signal voltage at the PCM goes above 4.5 volts for 3.2 seconds .
•TP sensor sweep
•(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