EGR / EmissionsLow ImpactDiesel

P2143 — Diagnostic Trouble Code P2143

OBD-II diagnostic code P2143 relates to the egr / emissions system. This code is logged when the ECU detects a parameter outside its expected operating range.

2+

Affected Brands

3+

ECU Platforms

2

Related Services

1

Related DTCs

Symptoms

What the driver typically experiences when P2143 is stored

!Check Engine Light
iNo noticeable drivability issues
iFailed emissions test

Why does P2143 appear after tuning?

This code may appear after ECU modifications when the affected system monitoring has not been fully recalibrated for the new operating parameters.

How proper calibration can address P2143

WEREMAP professional calibrations include comprehensive diagnostic management for all affected systems, preventing unnecessary fault codes while maintaining safe operation.

Related Tuning Services

Relevant services for the system behind P2143

EGR OffDTC Off

Related Diagnostic Codes

Codes from the same diagnostic system as P2143

P0405Low Impact

EGR Position Sensor Circuit Low

Affected ECU Platforms

Bosch EDC16C34Bosch EDC17CP42Siemens/Continental SID803a

Commonly Affected Vehicles

Peugeot508Bosch EDC17CP42
PeugeotExpert / TravellerSiemens/Continental SID803a
CitroenC5Bosch EDC16C34
CitroenBerlingoBosch EDC16C34

Based on data from 2+ vehicle brands. P2143 is not limited to these models.

Frequently Asked Questions

What does P2143 mean?â–¼
OBD-II diagnostic code P2143 relates to the egr / emissions system. This code is logged when the ECU detects a parameter outside its expected operating range.
Why does P2143 appear after ECU tuning?â–¼
This code may appear after ECU modifications when the affected system monitoring has not been fully recalibrated for the new operating parameters.
How do you prevent P2143 during remapping?â–¼
WEREMAP professional calibrations include comprehensive diagnostic management for all affected systems, preventing unnecessary fault codes while maintaining safe operation.
Which vehicles are affected by P2143?â–¼
P2143 is commonly found on Peugeot, Citroen vehicles equipped with Bosch EDC16C34, Bosch EDC17CP42, Siemens/Continental SID803a ECU platforms.
What other codes appear alongside P2143?â–¼
P2143 frequently appears together with P0405. These related codes typically originate from the same system modification and should be addressed together in the calibration.

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