that code means u have a open wire to the tps

wrote:

> Hi,
> I have a problem with a 97 inline 6cyl Jeep Cherokee sport: the check engine
> light came on and the code with it is PO123 "TPS input circuit A high ". So
> I replaced the TPS: no change. I measured all voltages: seems fine. I
> replaced the engine control unit: no change. I exchange the throttle body
> with all sensors (I stripped a thread when I first tried to take the TPS
> off): no change.
> It is not a fake error because the performance is really bad. The car stalls
> when you aproach a stop sign, the idle goes down to 300rev when I get of the
> throttle. And when I first start the car I need 3 times to start it.
> I also checked the wires to the ECU and they seem fine.
> Any thoughts if I am mislead by the error message of the OBD?
> Thanks in advance
>
> Jo