Hi,

 

i have a ford fiesta from 2014  1.6 Eco diesel, and it goes in Limp mode.

I would like to have some assistance with the troubleshooting, I have reset the DTC but it comes back right away after pressing the paddle and reaching 2000RPM

Code: P0299 - Turbocharger/Supercharger 'A' Underboost Condition
Code: P132B - Turbocharger/Supercharger Boost Control A Performance
Code: P2562 - Turbocharger Boost Control Position Sensor 'A' Circuit
Code: P2562 - Turbocharger Boost Control Position Sensor 'A' Circuit
 

I have created a spread sheet with the sensor data, before the reset and after, stationary and at 2000RPM. 

Could someone please guide me in what to look for ? 

https://docs.google.com/spreadsheets/d/e/2PACX-1vR0GeZnMyIG0_XqfQMDki9TWnRyT-djMm-OyWG86pD26AtqcNHhNkgf65Z5f815AcApi1QORsDO-vwT/pubhtml

 

 

The full error codes are as i see one is double but the description is not.:

Code: P0299 - Turbocharger/Supercharger 'A' Underboost Condition

Status (-EC):
 - DTC Maturing - Intermittent at Time of Request
 - Malfunction Indicator Lamp is On for this DTC
 - Test not complete

Module: Powertrain Control Module

 Freeze Frame  #1:
-EVENT_TIME: 318872036 s (Fri Apr 26 09:45:24 2024) - Event time
-TOTAL_DISTANCE: 378273 km - Total Distance
-MODULE_VOLTAGE: 59.0 V - Control Module Voltage
-PWR_MODE_KEY: Running  - Power Mode Key State
-PWR_MODE_QF: Power Mode OK  - Power Mode Quality Factor



Code: P132B - Turbocharger/Supercharger Boost Control A Performance

Additional Fault Symptom (:22):
 - Signal Amplitude Greater Than Maximum

Status (-6C):
 - DTC Maturing - Intermittent at Time of Request
 - Malfunction Indicator Lamp is Off for this DTC
 - Test not complete

Module: Powertrain Control Module

 Freeze Frame  #1:
-EVENT_TIME: 318871833 s (Fri Apr 26 09:42:01 2024) - Event time
-TOTAL_DISTANCE: 378270 km - Total Distance
-MODULE_VOLTAGE: 58.0 V - Control Module Voltage
-PWR_MODE_KEY: Running  - Power Mode Key State
-PWR_MODE_QF: Power Mode OK  - Power Mode Quality Factor


Code: P2562 - Turbocharger Boost Control Position Sensor 'A' Circuit

Additional Fault Symptom (:77):
 - Commanded Position Not Reachable

Status (-EC):
 - DTC Maturing - Intermittent at Time of Request
 - Malfunction Indicator Lamp is On for this DTC
 - Test not complete

Module: Powertrain Control Module

 Freeze Frame  #1:
-EVENT_TIME: 318886212 s (Fri Apr 26 13:41:40 2024) - Event time
-TOTAL_DISTANCE: 378415 km - Total Distance
-MODULE_VOLTAGE: 59.0 V - Control Module Voltage
-PWR_MODE_KEY: Running  - Power Mode Key State
-PWR_MODE_QF: Power Mode OK  - Power Mode Quality Factor

Code: P2562 - Turbocharger Boost Control Position Sensor 'A' Circuit

Status (-43):
 - Confirmed - malfunction is confirmed

Module: On Board Diagnostic II

Code: U0401 - Invalid Data Received from ECM/PCM A

Additional Fault Symptom (:81):
 - Invalid Serial Data Received

Status (-28):
 - Previously Set DTC - Not Present at Time of Request
 - Malfunction Indicator Lamp is Off for this DTC

Module: Front Distance Sensing Module

How did you get on with this?

I've managed to find the fault today.

There is a pump brown one, and from there there are 3 tubes, 1 goes to the turbo, there was a crack in the tube, I cut 2cm off and it works again after resetting the fault codes.

See the attached pictures for information, for me the pump is next to the air filter for the motor and near the oil filter aswell.

 

These videos helped me troubleshooting, in random order:

For me it was not the valve in this video, as mine is brown and on the left of the airfilter but it did help me look around.