Differential exhaust pressure signal : Reaction time too long
PSA · emissions
Data confidence72%
The control module detected the fault condition "Reaction time too long" for the Differential exhaust pressure signal. Documented for the Siemens SID 803 injection ECU (DW10BTED4 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
429
Specific fault index within the subsystem.
Frequently asked questions about P1429
What does P1429 mean?
Differential exhaust pressure signal : Reaction time too long. The control module detected the fault condition "Reaction time too long" for the Differential exhaust pressure signal. Documented for the Siemens SID 803 injection ECU (DW10BTED4 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Is P1429 generic or manufacturer-specific?
P1429 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.
Can TuningBot remove P1429 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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