P0123 Diagnostic Trouble Code Discussion for February 2009
Throttle Position Sensor/APPS High
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| Help Request | Posted | |
| 2000 Jeep Grand Cherokee Limited 4.7L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1J4GW58N6Y P0123: Throttle Position Sensor Circuit High Voltage. this car came today, comes from another shop that the customer took the car away from. he says they made him buy a computer and the problem is still there. what we checked is mil on, code PO123A tps ckt hi. the reading of tps in otc scanner is 72.3% open, and ... |
February 03, 2009 | |
| 2000 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality VIN: 1J4GW48S6Y P0123: Throttle Position Sensor Circuit High Voltage. It's a Jeep thing I just don't understand. This jeep has tps voltage over 4 volts as processed info but approx 1 volt @ pcm pin. I did unplug the clockspring but did not help. With clock spring plugged in and push on/off tps drop to 1 volt. |
February 09, 2009 | |
| 1997 Jeep Grand Cherokee Laredo 4.0L Cuts out VIN: 1J4GZ52SXV P0123: Throttle Position Sensor Circuit High Voltage. ... starts, i checked fuel pressure, for the 1 to 2 seconds that it runs, it is at 40 psi. also the vehicle has between 1/4 tank to 1/2 tank of gas, but the gas gauge shows at empty and along with that the low fuel warning light is on. p0123 code was stored in... |
February 11, 2009 | |
| 2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out VIN: 1J4GW48S33 P0123: Throttle Position Sensor Circuit High Voltage. Thanks in advance for the help. So far I replaced the throttle positioning sensor and that cleared the eratic idle for a little bit. But the volts came back up to 0.57 and the eratic idle came back. I've searched everywhere looking for leaks and haven't came a... |
February 19, 2009 |
