97 Jeep Cherokee freak error
 

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

Re: 97 Jeep Cherokee freak error
 

Crank Position Sensor?? I wouldn't say throw money at the problem until
your sure of the required part.

Snow...

<reigelser@sbcglobal.net> wrote in message
news:Td2ge.538$1A6.136@newssvr17.news.prodigy.com. ..
> 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
>

Re: 97 Jeep Cherokee freak error
 

Crank Position Sensor?? I wouldn't say throw money at the problem until
your sure of the required part.

Snow...

<reigelser@sbcglobal.net> wrote in message
news:Td2ge.538$1A6.136@newssvr17.news.prodigy.com. ..
> 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
>

Re: 97 Jeep Cherokee freak error
 

Crank Position Sensor?? I wouldn't say throw money at the problem until
your sure of the required part.

Snow...

<reigelser@sbcglobal.net> wrote in message
news:Td2ge.538$1A6.136@newssvr17.news.prodigy.com. ..
> 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
>

Re: 97 Jeep Cherokee freak error
 

Crank Position Sensor?? I wouldn't say throw money at the problem until
your sure of the required part.

Snow...

<reigelser@sbcglobal.net> wrote in message
news:Td2ge.538$1A6.136@newssvr17.news.prodigy.com. ..
> 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
>

Re: 97 Jeep Cherokee freak error
 

A google search for "PO123 TPS" revealed the following link:

http://www.tec-help.com/97_Dodge_Dakota_TPS.htm

Thought it might help..?
-Dave

Re: 97 Jeep Cherokee freak error
 

A google search for "PO123 TPS" revealed the following link:

http://www.tec-help.com/97_Dodge_Dakota_TPS.htm

Thought it might help..?
-Dave

Re: 97 Jeep Cherokee freak error
 

A google search for "PO123 TPS" revealed the following link:

http://www.tec-help.com/97_Dodge_Dakota_TPS.htm

Thought it might help..?
-Dave

Re: 97 Jeep Cherokee freak error
 

A google search for "PO123 TPS" revealed the following link:

http://www.tec-help.com/97_Dodge_Dakota_TPS.htm

Thought it might help..?
-Dave

Re: 97 Jeep Cherokee freak error
 

Thanks for the input. Once I fix it I'll let you know.

Jo

"Dave" <dmcglynn@gmail.com> wrote in message
news:1115731924.656117.324580@o13g2000cwo.googlegr oups.com...
>A google search for "PO123 TPS" revealed the following link:
>
> http://www.tec-help.com/97_Dodge_Dakota_TPS.htm
>
> Thought it might help..?
> -Dave
>