Unique By Tool Co. Ltd

●SIMPLE, QUICK AND ACCURATE TEST KIT

FOR CLOGGED CATALYTIC CONVERTER AND

MUFFLERS, ETC.

●SAVE YOUR TIME FROM THE TOUGH

DISASSEMBLING THE CATALYTIC CONVERTER

BEFORE HAVING AN ACCURATE DIAGNOSIS.

BACK PRESSURE TEST STANDARD

►START THE CAR, THEN READ THE GAUGE READING FOR THREE SITUATIONS AND STANDARDS :

► WHEN THE ENGINE KEEPS SLOW SPEED , THE READING SHOULD BE UNDER 1 PSI .

►WHEN THE ENGINE REACHES/KEEPS 3000 RPM , THE READING SHOULD BE UNDER 2 PSI .

►WHEN THE ENGINE REACHES/KEEPS THE HIGH SPEED , THE READING SHOULD BE UNDER 5 PSI .