Checking delivery rate of fuel system pressurisation pump G6, engine codes CBAA, CBAB, CBBB, CBDA, CBDB, CBDC, CJAA, CFFA, CFFB, CFGB, CFHB, CFHC, CLCA, CLJA — VW

Checking delivery rate of
fuel system pressurisation pump
G6
, engine codes CBAA, CBAB, CBBB, CBDA, CBDB, CBDC, CJAA, CFFA, CFFB, CFGB, CFHB, CFHC, CLCA, CLJA
Special tools and workshop equipment required
Pressure gauge
VAS 6550
Container > 3 litre with measuring scale
Vehicle diagnosis tester
Test prerequisite:
Fuses must be OK.
Battery voltage at least 12 V
All electrical consumers, e.g. lights and rear window heating, must be switched off.
Separate connection
A
from
supplementary fuel pump
V393
or
fuel pump 2
V277
.
Separate quick-release coupling
A
(completely black or with black marking) of fuel supply line. Separate connectors
Chapter
.
Connect
VAS 6550/1
pressure tester cable to fuel supply
A
.
Guide open end of line into measuring container.
Connect
diagnosis tester
and perform the guided function
“Checking electric fuel pump(s)”
.
Note
The fuel pump is now activated for 30 seconds.
After fuel flow, read quantity of fuel delivered on measuring container. Specification: at least 1000 ml/30 s
If the specification is not attained:
Check fuel supply line between fuel pump and engine compartment for kinks, crushes or damage.
If necessary, renew defective line and repeat test.
If the line is not kinked, squashed or damaged, proceed as follows:
Remove rear bench seat
General body repairs, interior
Rep. gr.
72
Rear seat; Removing and installing bench seat / individual seats
.
Fold carpet to the side or forwards.
Remove cover from fuel delivery unit
Chapter
.
Pull fuel supply line (black or black marking)
A
off fuel delivery unit.
Connect
VAS 6550/1
pressure tester cable to fuel supply
A
.
Guide open end of line into measuring container.
Connect
diagnosis tester
and perform the guided function
“Checking electric fuel pump(s)”
.
Note
The fuel pump is now activated for 30 seconds.
After fuel flow, read quantity of fuel delivered on measuring container. Specification: at least 1000 ml/30 s
If the specification is not attained:
Check voltage supply
Chapter
and current draw
Chapter
of fuel pump.