Throttle pedal position sensor

Have you had the vehicle plugged into an OBD2 scanner to look for trouble codes? This will give more clues as to what this issue could be. If you have to pay for this ask at 4 or 5 places as prices can be VERY different.
Simply "throwing" parts at the problem is a Very expensive way to work. Comment below with the codes and I'll see if I can help you more.

FRV OR CRV?
FRV IS EUROPE CAR ONLY.
ENGINE REAL NAME: 1.8 L R18A1 I4
SAME ENGINE AS SOME CIVICS HERE, USA
AUTO OR MANUAL TRANS? NOT TOLD
WILD GUESS AUTO?
sm states


Trouble Code Conditions:
APP Sensor A/B (TP Sensor D/E) Incorrect Voltage Correlation
Possible Causes:

• Intermittent failure. Check for poor connections or loose terminals at the APP sensor and the PCM.

Trouble Code: P2138 (1.8L L4 VIN - Auto)
APP Sensor A/B (TP Sensor D/E) Incorrect Voltage Correlation Print this code data so you dont know what APP means.
wall that TBW tech jargon, Throttle by wire.
it is a THROTTLE error.!
that has 3 or 4 TPS sensors and a motor drive to TV
the error means 2 of the sensors do not agree, Correlation error is that.
so is bad TB or bad pedal pots
the service manual tells you the tests with a meter to prove which POT lies .
APP is gas pedal module just above right foot.
TPS TV sensors are inside the TB throttle body, and most times
whole thing is changed out. to fix it. TB
The TB is that things the Air cleaner connects to, on top of engine
it is a large chuck of aluminum .

called TB (classic name)
THROTTLE ACTUATOR and
THROTTLE POSITION (TP) SENSOR
top center of engine , close to fire wall , facing engine.


photo below (civic) shows.
A does not agree with B
A = gas pedal pair of pots
B= TB
my wild guess is pedal module bad.
my guess APP pedal B is bad. and most cheap to buy. (?)

DTC P2127: Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

This is right out of factory service repair manual , don't google stuff may not be accurate.
If you look under the steering wheel at the gas pedal you will see connectors at the Accelerator Pedal . position sensors inside gas pedal .

Circuit/System Description
The throttle actuator control (TAC) system uses two accelerator pedal position (APP) sensors to monitor the accelerator pedal position. The APP sensors 1 and 2 are located within the pedal assembly. Each sensor has a 5-volt reference circuit, a low reference circuit, and a signal circuit.
Two processors are also used to monitor the TAC system data. Both processors are located within the engine control module (ECM). Each signal circuit provides both processors with a signal voltage proportional to pedal movement. The processors share and monitor data to verify that the indicated APP calculation is correct.

It's not see wide open throttle like other guy says .

P2127
The ECM detects that APP sensor 2 voltage is less than 0.16 volt for greater than 0.5 second.


Action Taken When the DTC Sets
• DTCs P2120, P2122, P2123, P2125, P2127, P2128, and P2138 are Type A DTCs.
• The ECM commands the TAC system to operate in Reduced Engine Power mode.


Anytime the vehicle goes into reduced engine power mode A/C shuts off - cruise control won't work etc..

Just change the gas pedal assembly .

Fuel , air , or spark...

I am only able to shoot you a guess on this and hopefully it steers you the right direction. I believe your vehicle went into limp mode. This can be from over heating to emission problems to a bad piston. The vehicle does this to protect itself. The cheapest way to diagnose this one is to take it in. Remember, having it diagnosed does not mean you cannot fix it yourself. Just pay the fee and take it home if it is something you want to tackle.

first code it's P0320 Possible causes
- Faulty Ignition/Distributor engine speed sensor
- Faulty Crankshaft Position sensor
- Ignition/Distributor engine speed sensor harness is open or shorted
- Ignition/Distributor engine speed sensor circuit poor electrical connection
- Low battery charge
- Faulty Engine Control Module (ECM)


Read more: http://engine-codes.com/p0320_ford.html#ixzz3DcwddSlp
2- P0750 Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 1 valve
- Shift solenoid 1 valve harness or connectors
- Shift solenoid 1 valve circuit is open or shorted


Read more: http://engine-codes.com/p0750_ford.html#ixzz3DcwoXS73
3- P0120 Possible causes
- Faulty Throttle Position Sensor
- Throttle Position Sensor circuit is open or shorted
- Throttle Position Sensor poor electrical connection


Read more: http://engine-codes.com/p0120.html#ixzz3Dcx3VCPs
4- P0220 Possible causes
- Throttle Position Sensor (TPS) harness is open or shorted
- Throttle Position Sensor (TPS) circuit poor electrical connection
- Faulty Throttle Position Sensor (TPS)
- Fault Electric Throttle Control Actuator (or Throttle Body Motor)
- Accelerator Pedal Position Sensor (APP)


Read more: http://engine-codes.com/p0220.html#ixzz3DcxGUMl4

FIRST AND FORMOST do not listen to any advice the totally unqualified parts guys hand out at Autozone or any other free code reader parts store, they want to sell you parts and that is all.

P0222 VOLKSWAGEN - Throttle Pedal Position Sensor/Switch 'B' Circuit Low
Possible causes- Throttle position sensor harness is open or shorted
- Throttle position sensor poor electrical connection
- Faulty Throttle position sensor
When is the code detected?An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

P0121 VOLKSWAGEN - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance
Possible causes- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM) When is the code detected?Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM.

Have the VW dealer complete the diagnosis on this.

test and/or replace throttle position sensor

The reduced engine power happens because there is a problem with the electronic throttle control . Some people call it drive by wire ! The gas pedal has sensors inside , position sensors , connected electrical to the PCM - engine computer , the throttle body on the engine has a DC electric motor an also has position sensors . These are also connected to the PCM electrical . The PCM reads the position sensors which indicate how much your pressing on the gas pedal . then hopefully it opens the throttle the same amout .

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 includes the following components:
• The accelerator pedal position (APP) sensors
• The throttle body assembly
• The engine control module (ECM)

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.

GM Electronic Throttle Body Circuit Descriptions And Testing Tips

Tons of videos on youtube for these systems , there can be a variety problems , from wiring , worn out sensors , the DC motor , computer etc....

its just a sensor. you do not have to replace the entire throttle body.