Vanagon F4-1915cc 1.9L (Water Cooled) (1983)
-
Switch ignition ON
-
Using multimeter US 1119, check voltage present across terminals of connector 2
Must be approximately 5 volts
If voltage reading NOT OK
-
Check for open circuit in wiring according to current flow diagram
If wiring OK
-
Replace control unit
Full Throttle Enrichment, Checking
Checking Full Throttle Enrichment
Test Conditions
Temperature sensor II minimum 60°C (140°F)
CO tester and VW 1367 connected
-
Start engine and let idle approximately two minutes
-
Slowly accelerate engine until 4000 rpm is reached
CO must read 0.3 - 1.1% Vol.
-
Using squared end of tool VW 1490, bridge terminals of connector 2
CO reading must increase above 1.5% Vol.
If CO readings NOT OK
-
Replace control unit