Running Code P0122

Kbrickman · 01-15-2009, 10:01 AM

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 · 01-15-2009, 07:07 PM

What year and engine?

Kbrickman · 01-15-2009, 09:51 PM

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

discnik · 01-15-2009, 10:23 PM

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 · 01-15-2009, 10:37 PM

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 · 01-16-2009, 01:54 AM

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

Kbrickman · 01-16-2009, 12:26 PM

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 · 01-16-2009, 10:15 PM

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

GET HEALTHY AFFORDABLE DOG FOOD

DEVELOPED BY THE AUTOMOTIVEFORUMS.COM FOUNDER & THE TOP AMERICAN BULLDOG BREEDER IN THE WORLD THROUGH DECADES OF EXPERIENCE. WE KNOW DOGS.

CONSUMED BY HUNDREDS OF GRAND FUTURE AMERICAN BULLDOGS FOR YEARS.

NOW AVAILABLE TO THE GENERAL PUBLIC FOR THE FIRST TIME

PROPER NUTRITION FOR ALL BREEDS & AGES

POST REPLY TO THIS THREAD