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Throttle pedal sensor

How too install

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  • Oldsmobile Master
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Remove old one making sure you marked it were it went. put new one on to them marking and should be fine.

Posted on Oct 11, 2013

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Posted on Jan 02, 2017

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Is the throttle sensor located at the accelerator pedal in a 2012 Jeep Patriot, Latitude (with 2.4 liter engine & automatic transmission, front wheel drive)?


There is one at the pedal and one at the throttle body. The one at the pedal tells the computer what throttle you want, and the one on the throttle tells the computer where the throttle is. Usually, if there is a fault code for the pedal sensor it will say "sensor A" and a problem st the throttle body sensor will say "sensor B", but not always.

Feb 02, 2017 | Jeep Patriot Cars & Trucks

1 Answer

I changed everything on a 2007 Chevy uplander the camshaft position sensor And the purged sensor And the throttle body and still the check engine light and the reduce engine power came back on


Reduced Engine Power Mode When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
?€¢
Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.


?€¢
Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.


?€¢
Throttle default mode--The ECM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.


?€¢
Forced idle mode--The ECM will perform the following actions:


-
Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned OFF


-
Ignore the accelerator pedal input


?€¢
Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.
Did you have it checked for DTC's - diagnostic trouble code's related to the reduced engine power ?
All so has APP sensor gas pedal !
Accelerator Pedal Position (APP) Sensor
The accelerator pedal contains 2 individual accelerator pedal position (APP) sensors within the assembly. The APP sensors 1 and 2 are potentiometer type sensors each with 3 circuits:
?€¢
A 5-volt reference circuit


?€¢
A low reference circuit


?€¢
A signal circuit

The APP sensors are used to determine the pedal angle. The engine control module (ECM) provides each APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensors provide the ECM with signal voltage proportional to the pedal movement. The APP sensor 1 signal voltage at rest position is less than 1 volt and increases to more than 4 volts as the pedal is actuated. The APP sensor 2 signal voltage at rest position is less than 0.6 volt and increases to more than 2 volts as the pedal is actuated.
Your best bet is take your vehicle to the dealer !
al

May 03, 2016 | Cars & Trucks

1 Answer

What does a throttle positioning censor for an 05 ford focus look like


I suggest you google 05 ford focus throttle positioning sensor. This sensor keeps you air intake throttle at the proper position when the engine is cold and changes position when the engine has warmed up. to locate the sensor, remove the hose that comes from the air filter housing to the engine. the hose you removed was connected to the air throttle. you can manipulate the position of this throttle by having someone push the gas pedal down slowly while you watch the throttle move. notice that the gas pedal cable is connected to the mechanism that opens and closes the air throttloe. also notice that beside this mechanism, you have an electric throttle positioning sensor. Pay close attention to the existing throttle positioning sensor before you remove it if you are planning on replacing this sensor. because if you do not install the new sensor in the same degree that the old one was in, you will throw the calibration off. word of advice. buy some throttle cleaner from your local auto parts. turn the car on with the air filter to throttle body hose off and have someone push the gas pedal down slightly to keep the engine from turning off. spray the throttle body cleaner til all the black crud comes off the inside of the throttle body. this dirty crud is what was making your throttle stick and not working properly.

May 01, 2014 | 2005 Ford Focus

1 Answer

Check engine light sensor


DTC P2138: Accelerator Pedal Position (APP) Sensor A/B (Throttle Position Sensor D/E) Incorrect Voltage Correlation.

Accelerator pedal position (APP) sensor A and accelerator pedal position (APP) sensor B are potentiometers, and they are installed in the engine compartment.

The APP sensors A and B are operated via the throttle cable to determine the accelerator opening value when the driver presses the accelerator pedal. The accelerator pedal opening value is converted to a signal in APP sensors A and B and transmitted to the engine control module (ECM)/powertrain control module (PCM) to compute the target position. The target position signal is then transmitted to the throttle actuator control module.

APP sensor A is for the primary control, and APP sensor B is a back-up of APP sensor A in case it malfunctions. Both sensors compare their output voltage to each other for malfunction detection.

When the voltage difference of APP sensor B is out of a fixed range for a set period of time, the ECM/PCM detects a malfunction, and a DTC is stored.

Sep 15, 2013 | 2007 Honda Accord Sedan

3 Answers

Error code p2138


Here is the definition. You may need to have someone check the accelerator pedal position sensor and the circuit.

P2138 NISSAN Description The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the Engine Control Module (ECM).
Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of the accelerator pedal and feed the voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals.
Idle position of the accelerator pedal is determined by the ECM receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine operation
such as fuel cut.
Read more: http://engine-codes.com/p2138_nissan.html#ixzz26J3D2x8s

Sep 12, 2012 | 2010 Nissan Versa 1.8

1 Answer

I have an 2006 lincoln navigator and i had 2 codes p2104 and p2112 i changed #2 spark plug and coil then i got a fail safe mode turned truck off then back on then went away then i got the two codes p2104...


Hi, there is a post here on this issue: http://www.fordf150.net/forums/viewtopic.php?t=50060&highlight=p2104

Since you have already changed the TPS, I assume you also cleaned the throttle body? Is the throttle actuating smoothly? If not, make any repairs needed to make it smooth and easy to rotate the throttle.
If the throttle is good, then test the accelerator position sensor per the procedure below.
Please let me know if you have any questions, and thanks for using FixYa.
OperationThe APP sensor is an input to the powertrain control module (PCM) and is used to determine the torque demand. There are 3 pedal position signals in the sensor. Signal 1, APPS1, has a negative slope (increasing angle, decreasing voltage) and signals 2 and 3, APPS2 and APPS3, both have a positive slope (increasing angle, increasing voltage). During normal operation APPS1 is used as the indication of pedal position by the strategy. The 3 pedal position signals make sure the PCM receives a correct input even if 1 signal has a concern. There are 2 reference voltage circuits and 2 signal return circuits for the sensor.
Removal & Installation
  1. Disconnect the battery ground cable.
  2. Disconnect the accelerator pedal position sensor electrical connector.
  3. Remove the 3 bolts and the accelerator pedal assembly.

To install:
  1. Install the 3 bolts and the accelerator pedal assembly.
  2. Tighten the mounting bolts to 18 ft. lbs. (25 Nm).

Testingjturcotte_1769.gif

Fig. 5.4L APP sensor connector

  1. Checking the VREF voltage to the Accelerator Pedal Sensor

    Turn the ignition switch to the off position. Disconnect the Accelerator Pedal sensor connector. Measure the voltage between pin 6, 7 (ETCREF+) and 1, 3 (ETCRTN-). The voltage should read between 4-6 volts, If not repair circuits in question.
  2. Checking the Functionality of the APP sensor.

    Turn the ignition off. Disconnect the Accelerator Pedal sensor connector. Refer to Resistance Chart:

    jturcotte_1770.gif

    Fig. APP Diagnostic resistance chart

May 27, 2011 | Lincoln Navigator Cars & Trucks

4 Answers

2003 Dodge Ram 2500 5.7 Hemi, Red lighting bolt on lower right of dash comes on. When this happens the motor will not pick up speed from standing start till you press the gas pedal on down, then it revs...


Hi, if you don't have a manual, you can get a free download here: http://www.dodge.com/en/owners/manuals/

The lightning bolt indicates a fault in the electronic throttle control. It is likely the rheostat/potentiometer in the accelerator position sensor is dirty or worn out. I have pasted info on the part below from autozone.com. If you replace the sensor, be sure to follow the calibration procedure at the end of the installation instructions. Please let me know if you have any questions and thanks for using FixYa.


Operation
The Accelerator Pedal Position Sensor (APPS) assembly is located under the vehicle battery tray. A cable connects the assembly to the accelerator pedal. A plastic cover with a movable door is used to cover the assembly.


NOTE The APPS is used only with the 5.7L V-8 engine.

The Accelerator Pedal Position Sensor (APPS) is a linear potentiometer. It provides the Powertrain Control Module (PCM) with a DC voltage signal proportional to the angle, or position of the accelerator pedal. The APPS signal is translated (along with other sensors) to place the throttle plate (within the throttle body) to a pre-determined position.
A mechanical cable is used between the accelerator pedal and the APPS assembly. Although a cable is used between the pedal and APPS, a mechanical cable is not used at the throttle body. Throttle plate position is electrically determined.
The Accelerator Pedal Position Sensor (APPS) assembly is located under the vehicle battery tray. A cable connects the assembly to the accelerator pedal. A plastic cover with a movable door is used to cover the assembly.


NOTE The APPS is used only with the 5.7L V-8 engine.

The Accelerator Pedal Position Sensor (APPS) is a linear potentiometer. It provides the Powertrain Control Module (PCM) with a DC voltage signal proportional to the angle, or position of the accelerator pedal. The APPS signal is translated (along with other sensors) to place the throttle plate (within the throttle body) to a pre-determined position.
A mechanical cable is used between the accelerator pedal and the APPS assembly. Although a cable is used between the pedal and APPS, a mechanical cable is not used at the throttle body. Throttle plate position is electrically determined.


Removal & Installation
The APPS is serviced (replaced) as one assembly including the sensor, plastic housing and cable. The APPS assembly is located under the vehicle battery tray. Access to APPS is gained from over top of left / front tire.

  1. Disconnect negative battery cable at battery.
  2. Disconnect APPS cable at accelerator pedal.
  3. Remove wheel house liner at left / front wheel.
  4. Gain access to APPS electrical connector by opening swing-down door.
  5. Disconnect electrical connector.
  6. Remove 3 mounting bolts.
  7. Remove APPS assembly from battery tray.
  8. If cable is to be separated at APPS, unsnap cable clip from ball socket. Release cable from plastic housing by pressing on small cable release tab.

To Install:
  1. Install Accelerator Pedal Position Sensor (APPS) cable to accelerator pedal. Refer to Accelerator Pedal Removal / Installation.
  2. Connect electrical connector to APPS.
  3. If necessary, connect cable to APPS lever ball socket (snaps on).
  4. Snap APPS cable cover closed.
  5. Position APPS assembly to bottom of battery tray and install 3 bolts.
  6. Install wheelhouse liner.
  7. The 5.7L V-8 engine is equipped with a fully electronic accelerator pedal position sensor. If equipped with a 5.7L, also perform the following 3 steps:
    1. Connect negative battery cable to battery.
    2. Turn ignition switch ON, but do not crank engine.
    3. Leave ignition switch ON for a minimum of 10 seconds. This will allow PCM to learn electrical parameters.
      NOTE The DRB III Scan Tool may also be used to learn electrical parameters. Go to the Miscellaneous menu, and then select ETC Learn.

  8. If the previous step is not performed, a Diagnostic Trouble Code (DTC) will be set.
  9. If necessary, use a proper scan tool to erase any Diagnostic Trouble Codes (DTCs) from PCM.

Jan 29, 2011 | 2004 Dodge Ram 2500

1 Answer

2003 Yukon Denali XLT lights flicker, rpm goes up and down when on park or stopped or driving and slow speeds. Sometimes it turns off. I thought it might be bad spark plugs or cables so I changed them and...


Your vehicle has electronic throttle control . Position sensor's in the gas pedal an the throttle body , inputs to the Throttle Actuator Control Module
The TAC module is the control center for the throttle actuator control system. The TAC system is self-diagnosing and provides diagnostic information to the PCM through a dedicated serial data line. The TAC achieves throttle positioning by providing a pulse width modulated voltage to the TAC as directed by the PCM.

The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
• Accelerator pedal position sensing
• Throttle positioning to meet driver and engine demands
• Throttle position sensing
• Internal diagnostics
• Cruise control functions
• Manage TAC electrical power consumption
The TAC system components include the following:
• The accelerator pedal position (APP) sensors
• The throttle body assembly
• The throttle actuator control module
• The powertrain control module (PCM)
Accelerator Pedal Position (APP) Sensor
The accelerator pedal assembly contains 2 individual APP sensors within the assembly. The accelerator pedal position (APP) sensors 1 and 2 potentiometer type sensors each with 3 circuits:
• A 5-volt reference circuit
• A low reference circuit
• A signal circuit
The APP sensors are used to determine the pedal angle. The control module provides each APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensors then provide the control module with signal voltage proportional to pedal movement. APP sensor 1 signal voltage is low at the rest position and increases as the accelerator pedal is applied. APP sensor 2 signal voltage is high at the rest position and decreases as the accelerator is applied.
Throttle Body Assembly
The throttle body assembly consists of the throttle body, the throttle position (TP) sensors, and the throttle actuator motor. The throttle body functions similar to a similar to a conventional throttle body with the following exceptions:
• An electric motor opens and closes the throttle valve.
• The throttle blade is spring loaded in both directions and the default position is slightly open.
• There are 2 individual TP sensors within the throttle body assembly.
The TP sensors 1 and 2 are potentiometer type sensors each with 3 circuits:
• A 5-volt reference circuit
• A low reference circuit
• A signal circuit
The TP sensors are used to determine the throttle plate angle. The control module provides each TP sensor a 5-volt reference circuit and a low reference circuit. The TP sensors then provide the control module with signal voltage proportional to throttle plate movement. Both TP sensor signal voltages are low at closed throttle and increase as the throttle opens.

Flickering light's could be caused by a bad diode in the alternator . Fluctuating idle could be caused same alternator problem or dirty throttle plate.
Throttle Body Cleaning To Restore Idle Quality

Jul 15, 2017 | 2003 GMC Yukon

1 Answer

I have a 2007 Chevy Tahoe. The engine light came on and stayed on. When checked, here is the code that appeared: TPS/PEDAL POSITION SENSOR ACKT RANGE/PERF. I am assuming the code deals with the...


If it is a code P0226 I would not consider it a safety issue.


Throttle position (TP) sensor C/accelerator pedal

position (APP) sensor ? - range/performance problem


Possible Causes: Accelerator cable adjustment, TP/APP sensor

Throttle position (TP) switch C/accelerator pedal position

(APP) switch ? - range/performance problem
Accelerator cable adjustment, TP/APP switch

This might only be an adjustment issue--make sure the throttle cable isn't so tight that the throttle cannot fully close.
If the cable is OK, it is probably the accelerator position sensor under the pedal.
There are procedures for testing the unit that I will paste below if you care to try them.

If you just want a shop to fix it, the part is about $50 and labor should only be 30 minutes.


Operation The sensor is made up of the two individual sensors within a single housing. Each sensor has a unique functionality to determine pedal position. The APP system along with the Powertrain Control Module (PCM) is used to calculate and control the amount of acceleration and deceleration through fuel injector control.


Removal & Installation

  1. Remove the driver-s side knee bolster.
  2. Push down on the small tab and disengage the electrical connector.
  3. Remove the pedal bolts and remove the pedal and sensor assembly.
  4. Installation is the reverse of removal.

    5bcaece.gif

Fig. APP sensor mounting
Testing

  1. Install a 3 amp fused jumper wire between the 5-volt reference terminal of the APP sensor and 5 volts. Install a jumper wire between the low reference terminal and a ground.
  2. Sweep the sensor through the entire range while monitoring the voltage between the signal terminal and the low reference terminal with a digital multimeter. The voltage should vary between 0.30-4.98 volts without any spikes or dropouts.
  3. If the voltage is not within the specified range or is erratic, replace the accelerator pedal assembly.

Oct 06, 2010 | Chevrolet Tahoe Cars & Trucks

1 Answer

I have a 2006 BMW 750li, removal of gas pedal


IF YOU ARE GETTING A THROTTLE PEDAL POSITION SENSOR FAULT CODE.THE THROTTLE POSITION SENSOR IS THE WHOLE THROTTLE BODY UNIT IS THE THROTTLE POSITION SENSOR.THE SENSOR NOT IN GAS PEDAL LIKE VOLKSWAGON. VOLKSWAGON HAS THE ACCELERATOR PEDAL POSITION SENSOR.

May 16, 2010 | 2006 BMW 750Li

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