24-68
      
Mass Air Flow (MAF) sensor, checking
 
     
Required special tools and test equipment  
     
VAG1551 or VAG1552 Scan Tool (ST) with 
VAG1551/3 adapter cable 
     VAG1598/22 test box 
     Multimeter US1119 (Fluke 83 or equivalent) 
     VW1594 connector test kit 
     Wiring diagram 
     
Test requirements  
     All electrical consumers switched off (coolant 
fan must not run during test). 
     A/C must be switched off 
     Fuse for MAF sensor OK 
Pa
ge 89 of 166 Motronic Multi
port Fuel In
jection 
(MFI
) and i
gnition s
ystem
11/23/2002 htt
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