Final Check Of Control Unit - Volvo 240 1989 Service Manual

Checks
Fuel system LH2.4 - 240
2.
Connect voltmeter between ground and the yellow­
red (V-R) cable in the two-terminal connector at right
wheel house. Reading should be 12 V.
3.
Connect ohmmeter between ground and the yellow­
red (V-R) cable in the two-terminal connector at righl
wheel house . .
Lambda-sond temperature:
Cold: +20"C (68"F) approx. 3
n
Hoi:
+
350°C
(660"F) approx. 13
n
(Hot temperature achieved on idle with hot engine.)
E24
Final check of control unit
Important !
~
The ignition must always
be oft when removinglin­
~
stalling connector.
Connect connector . Be sure the connector's rubber
gasket is reinstalled before connecting to conlrol unit.
Start engIne
If englne does not start after preceding fuel system
check, test with a new conlrol uni\.
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