Fiat 1995 Brava, Service Manual

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53 16 23
P 4 A 3 3 C J 0 4
P 4 A 3 3 C J 0 2
Engine
Fuel system
10.
Wiring connector
The numbers in squares indicate the corre-
sponding control unit pins.
Checking resistance
The sensor's resistance can be measured by
connecting an ohmmeter between pins A and
C of the sensor.
Resistance: 0-1200 ohm ± 20% at 23 C
Recovery
A value is assumed which is calculated in ac-
cordance with the pressure present in the in-
let manifold; if the pressure sensor is also
faulty, a throttle aperture angle of about 50° is
established as a fixed value.
The strategies of gradual reduction of rpm at
idling speed (dashpot) are inhibited.
P 4 A 3 3 C J 0 3
Self-adaptivity of idle speed is inhibited.
Self-adaptivity of the mixture strength is in-
hibited.
Removing-refitting
Undo the two bolts and remove the sensor.
NOTE The sensor is secured to the throttle
body by means of two lugs in which
there are two non-slotted holes; it is
therefore not necessary to make any
adjustment to its angle position as
the control unit itself, by means of
appropriate self-adaptive algorithms,
recognizes the fully closed or fully
open position of the throttle.
NOTE Whenever the potentiometer bolts are slackened or removed, they must be replaced as the
thread is coated with a thin layer of Loctite which ensures only once that they lock.
Copyright Fiat Auto
VI-96 - Update
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