Running Code P0122

[Kbrickman]

Im tired of winters.. its destroying my car..

Im running a p0122 code ( TPS/Pedal Position Sensor A Circuit Low Input)

Got no idea what that is. What could be wrong? Exspensive?I just replaced the IAT sensor yesterday after it started acting up on me.

Help?

Thanks everyone

[old_master]

What year and engine?

[Kbrickman]

Soory bout that, thought the answer might have been universal. Its an 01 2.4L

[discnik]

Testing: TPS voltage should be between .60 to .70 volts.

Measure the voltage at the sensor. If the volt is too low, Check the 5 volt reference at the sensor. If the 5 volt reference is good the TPS is bad.

The PCM will default to set values if this code is set.

Gray wire = 5 volt reference

Dark Blue wire = TP Sensor signal

Black = Ground

[Kbrickman]

Will do first thing in the morning. Two questions, can i have a brief explanation as to where i can find the sensor exactly ( or what it looks like)

Also, what if my reference isn't showing 5 volts?

[discnik]

Check your "Private Messages". Sent the wiring diagram and troubleshooting info.

[Kbrickman]

EDIT: i got the 5 volts out of the reference wire. But how do i test what the tps is putting out if the wiring harness has to be plugged in? Or does this already mean that its bad?

[discnik]

I "knick" the wire with a knife, and test voltage there. Of course tape up the area afterwards.