Why doesn't it rev up when I press the gas pedal?

SOURCE: My 1995 Lexus ls400 will not accelerate properly when you press

possiblyclogged(or almost clogged) fuel filter,ive ran into this quite a few times,if not clarify w/more detail?

SOURCE: Vehicle dies while driving-no acceleration possible

TRY CHECKING THE WIRE CONNECTORS ON THE PCM WHICH IS LOCATED ON THE PASSENGER SIDE FIREWALL. IT HAS THREE LARGE MULTI-WIRE CONNECTORS HELD IN PLACE BY THREE BOLTS. WIGGLE THE CONNECTORS WHILE TIGHTENING THE BOLTS CAREFULLY SO AS NOT TO BREAK THE FRAGILE PLASTIC ENDS. HOPE THIS SOLVES THE PROBLEM. KEEP ME POSTED PLEASE. THANKS FOR USING FIX-YA. GOOD LUCK

SOURCE: 98 bmw z3 gas pedal meets resistance

has some of the fire wall sound deadner falling behind the pedal near the top where it mounts

Mike Butler

• 6674 Answers
• Posted on Dec 21, 2009

SOURCE: 2002 DODGE INTREPID, CODE P0016, WHEN RUNNING IF I

P0016 usually indicates, Crankshaft and camshaft are out of sync, which will cause the symptoms you are experiencing. You can try replacing both crank and cam sensor, but no guarantees.On the other hand, a dealer should be able to test both those sensors before replacing them if they think one or more is defective, as they have been having some problems with transmission flex plates cracking and causing signal to be off, on crank sensor. The dealer can put the DRBIII scan tool on to sync it and check. If it turns out to be flex plate, ask dealer to go to bat for you with Chrysler on paying part of the repair, as it is becoming more common these days and they may just help out. If not, call owner relations at Chrysler yourself and ask them why they won't help when it's an obvious defect, but let dealer try first. Good Luck, keep me posted.

Jeffrey Turcotte

• 8991 Answers
• Posted on Jan 29, 2011

SOURCE: 2003 Dodge Ram 2500 5.7 Hemi, Red lighting bolt on

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.

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.