Engine Control System/Fuel System

Boost Pressure Sensor (BPS)

5steps
~30min
2/5difficulty
0102030405010.88N·mlb·ft
Tightening torque found on this page
Done 0 of 5

Specifications

Specification

▷ Type: Piezoresistive pressure sensor
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V) [Vref=5V]
32,5 (0,33, 4,71) 0,5
284 (2,90, 41,19) 4,5

Description and Operation

Description

The Boost Pressure Sensor (BPS), installed on the intercooler unit, measures the pressure of the compressed air from the turbocharger.

Circuit Diagrams

Wiring Diagram

[A/T]

[M/T]

Repair Procedures

Inspection

  1. Connect the KDS to the Data Link Connector (DLC).
  2. Measure the BPS output voltage with the engine idling and the ignition switched ON.
    Pressure
    [kPa (kgf/cm², psi)]
    Output Voltage (V) [Vref=5V]
    32,5 (0,33, 4,71) 0,5
    284 (2,90, 41,19) 4,5

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
  2. Disconnect the boost pressure sensor connector (A).
  3. Remove the sensor by loosening the mounting bolts (B). Boost pressure sensor mounting bolt: 6.9 – 10.8 N·m

Installation

  1. Install in the reverse order of removal.

Test yourself

A quick Kia Picanto JA quiz: every answer comes with an explanation and a link to the manual page.