Tracker 4WD L4-1.6L VIN 6 (1998)
5. Connect a vacuum pump to tube P (1) and plug tube Q (2) with your finger.
6. Blow air (3) into tube A (4) while applying vacuum to tube P at the same time. You should be able to obtain vacuum on the vacuum pump gauge.
7. Stop blowing air into tube A. The vacuum pump gauge should read zero.
8. Replace the EGR pressure transducer if the transducer fails either test.
