t.p.s. 06 grand prix
- Thread starter beast3300
- Start date
Stonewall
New member
No it is almost impossible. It is a reduntant system (there are 2 potentiometers working side by side) if one fails the other is used. The TPS is part of the gas peddle. I think it's up on top under the dash next to the fire wall.
You may have a broken wire or bad connection to the sensor itself.
Here is the schematic diagram.
You may have a broken wire or bad connection to the sensor itself.
Here is the schematic diagram.
beast3300
New member
The code is P0068 then it says see service manual. I asked my friend at a repair shop that brought it up on his mitchell said it is tps sensor.
Stonewall
New member
OK that helps.
That code will get set when the PCM sees a condition where it compares engine load and air flow through the intake with the expected throttle position. If the throttle position is not where the PCM expects it to be then it will reduce engine power and put up that code.
My bet is you had a problem with to much airflow or a leaking vaccum line.
Check the following:
The vacuum hoses for splits, kinks, and improper connections as shown on the Vehicle Emission Control Information label--Inspect thoroughly for any type of leak or restriction.
Air leaks at the throttle body mounting area and the intake manifold sealing surfaces
Restrictions in the Air Intake System, including the filter.
Check the throttle body as well:
Loose or damaged throttle blade
Broken throttle shaft
Damaged throttle body
I doubt very much that it's the TPS. It's one of the things above that caused the code. As long as it isn't showing up your OK but it never hurts to go through and check it out.
Hope you find the problem.:th_rockon1:
That code will get set when the PCM sees a condition where it compares engine load and air flow through the intake with the expected throttle position. If the throttle position is not where the PCM expects it to be then it will reduce engine power and put up that code.
My bet is you had a problem with to much airflow or a leaking vaccum line.
Check the following:
The vacuum hoses for splits, kinks, and improper connections as shown on the Vehicle Emission Control Information label--Inspect thoroughly for any type of leak or restriction.
Air leaks at the throttle body mounting area and the intake manifold sealing surfaces
Restrictions in the Air Intake System, including the filter.
Check the throttle body as well:
Loose or damaged throttle blade
Broken throttle shaft
Damaged throttle body
I doubt very much that it's the TPS. It's one of the things above that caused the code. As long as it isn't showing up your OK but it never hurts to go through and check it out.
Hope you find the problem.:th_rockon1:
njbrain
New member
Like was said earlier, there are two APS's (Accelerator position sensor) on the car for safety reasons. When one fails, the car will go into "limp" mode so you will know that there is a problem. Whether it is a sensor, wire, or module, only a proper diagnosis will tell. If I remember correctly, you have to have a fault with the APS circuit to set the APS code, so I don't think that an air filter would cause the problem. However, a dirty, sticking throttle plate could. In reality, if the air filter was that dirty, you will have a serious fuel trim issue.