Fault in the control of the variable valve lift motor : Modelled VVT engine temperature too high
PSA · engine
Data confidence72%
The control module detected that the Fault in the control of the variable valve lift motor was above its expected limit. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Applies toPeugeotBosch MED 17.4.x engine ECU (EP6 THP family)
P1078
Fault in the control of the variable valve lift motor : Modelled temperature of the variable valve lift motor too high (Valvetronic)
PSA · engine
Data confidence72%
The control module detected that the Fault in the control of the variable valve lift motor was above its expected limit. Documented for the Bosch MEV17.4 engine ECU (EP6 1.6 VTi) 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.
078
Specific fault index within the subsystem.
Frequently asked questions about P1078
What does P1078 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected that the Fault in the control of the variable valve lift motor was above its expected limit. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Is P1078 generic or manufacturer-specific?
P1078 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 P1078 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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