Engine revs

Hello,

This is usually due to a throttle actuator problem. Here is a guide to help you see what you are in for when changing the actuator out.

https://www.2carpros.com/articles/how-a-throttle-body-works

Here is a Bulletin as well

TECHNICAL SERVICE BULLETIN No.75/2007
26 October 2007

Subject/Concern: Loss of power; Electronic accelerator control failure message displayed in the instrument cluster in conjunction with diagnostic trouble codes (DTCs) P2135, P2119, P2176
Model:
Fiesta 2002.25 (11/2001†09/2008) Build Date: 01.08.2004-31.01.2007
Build Code: 4E-7C
Engine: 1.25L Duratec-16V (Sigma)
Engine: 1.4L Duratec-16V (Sigma)
Engine: 1.6L Duratec-16V (Sigma)
Fusion 2002.75 (06/2002†) Build Date: 01.08.2004-31.01.2007
Build Code: 4E-7C
Engine: 1.25L Duratec-16V (Sigma)
Engine: 1.4L Duratec-16V (Sigma)
Engine: 1.6L Duratec-16V (Sigma)
Markets: All
Section: 303-04
Summary

Should a customer express concern about loss of power and that the electronic accelerator control failure message is displayed in the instrument cluster, the probable cause is a contact corrosion on both, the pins within the TP sensor and the fuel charging wiring harness electrical connector, causing the following diagnostic trouble codes (DTCs) to be stored in the Powertrain Control Module (PCM).

†P2135: Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation

†P2119: Throttle Actuator Control Throttle Body Range/Performance

†P2176: Throttle Actuator Control System - Idle Position Not Learned

To rectify this concern, the electronic throttle body must be removed, a new TP sensor and a new fuel charging wiring harness with both gold plated pins should be installed.

†NOTE: Due to sensitive signals the repair of the wiring harness is NOT allowed. New and old level parts must NOT be used in a combination.

†NOTE: A damaged electronic throttle body and the removed fuel charging wiring harness must be returned to the Parts Recall Center via the usual send-in procedure.

Parts Required
Description Finis Code Quantity
Kit-Electronic throttle control
Kit-Electronic throttle control consists of: 1 509 254 1
Fuel Charging wiring harness 1
TP sensor 1
Screw 4
Electronic throttle body (if required) see Ford Ecat 1

Production Action
A revised TP sensor and fuel charging wiring harness has been introduced into production by 01.02.2007 (build code 7K).

Service Instruction
See Summary.

TP sensor connector - Check

1. Connect the WDS/IDS portable diagnostic unit to the vehicle and establish communication (VID the vehicle).

Confirm the vehicle details are correct.

2. NOTE: General vehicle electrical issues can have effect on other systems. Battery voltage and electrical relay issues should be rectified before this service instruction is carried out.

Check the battery voltage.

Switch on the heated rear window and the headlamps.
If the battery voltage is below 11.3 V recharge the battery and carry out a road test to verify. If the concern is still present, go to next step.

Electronic throttle body - Remove

1. Remove the electronic throttle body from the intake manifold. For additional information, refer to Fiesta 2002.25; Fusion 2002.75 Workshop Manual Section 303-04.

TP sensor - Renew

1. CAUTIONS:

Open the cover in a clean environment to make sure no contamination enters. Care must be taken when removing the cover as it is possible for a gear to fall out. Do not apply any load to the TP sensor during assembly.

TP sensor screws are installed using locking compound and could shear when removing. To prevent this, the screws should be partially removed by two or three revolutions then tightened again. If a screw shears a new throttle body (see Parts Required) must be installed.

†NOTE: The damaged electronic throttle body must be returned to the Parts Recall Center via the usual send-in procedure.

Install a new TP sensor with four new screws (see Parts Required).

Tighten the screws in the sequence shown.

2. NOTE: The electronic throttle body function test must be performed before installing the electronic throttle body. When the electronic throttle body motor is not in use, the throttle flap sits slightly open in a

Check out the diagrams (Below)

Please let us know what you find. We are interested to see what it is.

Cheers, Ken

You question was partially deleted because you wrote it on the title line.

If you are in gear and the engine revs but the car doesn't speed up, it sounds like the transmission is slipping.

Have the vehicle remapped (remove the chip) to see if the EAC returns to it's normal operation !

That is what it sounds like. Make sure the trans fluid is clean and full. Remember, check automatic transmissions with the engine running and in park (unless it says something different on the dip stick)

If it is a manual transmission, the clutch is seperate from the transmission. If you are unsure if it is slipping, you need to have it checked by a tech.

Throttle position sensor is located on the throttle body.

Try cleaning the throttle plate on both sides with choke cleaner and iac hole first.

Return the car to the dealer to be checked out? It is still under warrenty

Have the vehicle plugged into a diagnostic computer to check for fault codes stored