SC 300 L6-3.0L (2JZ-GE) (1992)
/Page-448001.png)
EGR Backpressure Transducer: Testing and Inspection
Modulator Inspection
- Disconnect vacuum hoses from modulator.
- Block ports P and R.
- Blow through port Q. Air should flow freely through filter.
Modulator Inspection
- Start engine and raise rpm to 2,500.
- Block ports P and R.
- Blow through port Q. Strong resistance to air flow should be present.
- Replace modulator if desired results are no achieved.
