SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | Motronic injection and ignition system (1.4 l engine, 2 valves) | Mixture preparation system, electronic inj.,Gas | Component test

Intake manifold pressure sender: testing

Note!

Use only gold contacts to repair the sender connector contacts.

Special tools and workshop equipment required

t	Hand-held multimeter -V.A.G 1526 A- or Multimeter -V.A.G 1715-

t	Auxiliary measurement set -V.A.G 1594 C-

t	Test box -V.A.G 1598/22-

t	Wiring diagram

Test process

–	Unplug the 4-pin connector from the intake manifold pressure sender -G71- with intake air temperature sender -G42--arrow-.

–	Connect test box -V.A.G 1598/22- to the control unit wiring harness.

–	Test for open circuits in the wiring between the test box and the 4-pin connector (connector to the control unit) following the wiring diagram.

Contact 3+female contact 62

Contact 4+female contact 70

–	Also test the wire for short circuits between wires, to vehicle earth and to battery positive. Target value: ∞ Ω

If no fault is found in the wiring:

–	Replace the intake manifold pressure sender -G71- with intake air temperature sender -G42- → Item.

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