Volvo 819 E Service Manual page 98

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Engine does not start
Check control unit and power stage ground
connections
Grou nd leads (brown and
secu rely to terminals on
Check for spark at spark plugs
Caution! Fuel system control
spark str ikes injector or
Disconnect HT lead from
to spa re pl ug.
Ground plug and operate
powerful blue-white spark is present
in engine or fuel syst em
tf spark is weak or absent
directl y t o ign ition coil HT te rmi nal. Grou
operate starter motor.
If spark is still weak or
tion coil o r ignit ion system LT
If powerful blue-white spark is now
rot or, distribut or cap and
qu ired.
Group 28 Ignition s ystems
Faul t tracing, Rex-'
black) should be tightened
i ntake m anifold.
un it may be d estroyed if
unit wiri ng.
one spark p lu g and con
st arter motor.
: Fault is located
.
: Connect plug and HT lead
nd pl ug
absent, fault is located in ig
(see N11·N36).
present,
HT leads. Replace as
NB
N9
nect
Nl0
and
n i.
check
reo
217