How to remove accelerator pedal? - 1996 BMW 318

It's easy ! Disconnect the electrical connector , un bolt it .
Removal Procedure
Notice: Handle the electronic throttle control components carefully. Use cleanliness in order to prevent damage. Do not drop the electronic throttle control components. Do not roughly handle the electronic throttle control components. Do not immerse the electronic throttle control components in cleaning solvents of any type.
Remove the connector position assurance (CPA) retainer. Disconnect the accelerator pedal position (APP) sensor electrical connector. Reposition the carpet to access the lower nut.
Remove the accelerator pedal nuts. Remove the accelerator pedal assembly.

depending on the pedal and the mount position. If it is floor mounted there will be a pivot pin at the base secured by a split pin. If the pedal is mounted on the end of a rod then there will be a shaft again secured by a split pin

Is there anything obstructing its return to higher position?
If not, the spring that pulls it back is not working.

Further information will be required unless you would nlike a simple solution like.
Step one start said vehichle
Step 2 apply foot ti brake pedal and put gear selector in drive
Step 3 remove foot from brake pedal to accelerator pedal
Step 4 apply presure to accelerator pedal untill desired speed has been acheived
Note these steps will not work for manual transmission see section 37

For braking see section 22

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

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.

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.
   
   

   

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.

YOUR ACCELERATOR PEDAL SENSOR ON ACCELERATOR PEDAL IT HAS BOLTS HOLDING IT IN PLACE.JUST UNPLUG ACCELERATOR CONNECTOR AND REMOVE THE BOLTS THEN SENSOR.

You do not have to remove the pedals, however by the service manual you are supposed to remove the steering column if you have not already.

you may have a badly carboned throttle body that needs cleaning with carb cleaner.

If cable:

Accelerator Cable —1.8L/2.0L Removal

1. Disconnect the accelerator cable.
   1. Remove the accelerator retaining clip.
   1. Disconnect the accelerator cable.
2. Detach the accelerator cable from the bracket.
   1. Rotate the cable to release.
   1. Detach the accelerator cable.
3. Remove the footwell trim panel.
4. Disconnect the accelerator cable from the pedal.
5. Attach a draw cord to the accelerator cable to assist with installation.
6. Remove the accelerator cable.