Inspection Of Auxiliary Acceleration Pump System; Inspection Of Auxiliary Acceleration Pump Diaphragm - Volkswagen Taro 1989 Workshop Manual

INSPECTION OF AUXILIARY ACCELERATION PUMP SYSTEM
1.
Check system with cold engine
(a) Check that the coolant temperature
IS
below 45-C
(h) Remove the air cleaner
(C) Stan the engine
(d) Pinch the M P hose
(2).
and stop the englne
(e) Release the hose
l
E C m m
(0
Check that gasollne spurts out from the acceleration
noule (1)
2
Repeat (c), (d) and (e) above after warm-up
(a) Check that gasohne does not spun out from the accei
eratlon nozzle (1)
(h) Relnstail the atr cleaner
IF NO PROBLEM IS FOUND WITH THIS INSPECTION THE
m a w
SYSTEM IS OKAY OTHERWISE INSPECT EACH PART
INSPECTION OF AUXILIARY ACCELERATION PUMP
DIAPHRAGM
Check diaphragm operation at idle
(a) Stan the engine
(h) Disconnect the hose from the M P dlaphragm
(c) Apply and release the vacuum dlrectly to the M P
dlaphragm at Idle
(d) Check that the englne rpm changes by
releasing
vacuum
(e)
Reconnect the M P hose
if a problem
IS
found, replace the dlaphragm