volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

CIS W/OXS System - New Checking/Adjusting Procedures|Page 3737 > < CIS W/OXS System - New Checking/Adjusting Procedures|Page 3735
Page 3
background image

Note

Pay no attention to figures displayed in rpm window of testor VW 1367

-

check OXS-duty cycle and CO reading

^

OXS-duty cycle must read 25-65% (23-59~ dwell) (reading must fluctuate)

^

CO must read between 0.3-1.0%

If CO reading is higher than 1.0% with OXS-duty cycle reading correct
-

check following and repair as necessary

^

leaking exhaust system

^

leaks in intake system

^

uneven fuel distribution by fuel distributor

^

injector spray pattern incorrect

CIS W/OXS System - New Checking/Adjusting Procedures|Page 3737 > < CIS W/OXS System - New Checking/Adjusting Procedures|Page 3735