Axxess 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1990)
EGR Backpressure Transducer: Testing and Inspection
Fig. 157 BPT Test
BACK-PRESSURE TRANSDUCER VALVE
1.
Plug one of the "A" ports.
2.
Apply pressure above 0.490 kPa (50mmH2O, 1.97inH2O) to port "B".
3.
Apply vacuum to other "A" port.
Vacuum should hold steady.
If not, replace valve.
EGR Valve Test
EXHAUST GAS RECIRCULATION VALVE
Apply vacuum to fitting on valve.
^If the diaphragm does not hold vacuum or valve spring does not lift replace valve.
Fig. 46 Solenoid Test
EGR SOLENOID FUNCTION TEST
Apply voltage to the solenoid terminals and check air passages for continuity as shown above.
CAUTION: Reversing polarity will damage the solenoid.
^Replace solenoid if it fails above test.