Workshop Manuals Factory service & repair Fiat
01 00 General information and technical data02 10 Engine03 18 Clutch04 21 Gearbox and differential05 27 Axle06 33 Braking system07 41 Steering08 44 Suspension and wheels09 50 Auxiliary units10 55 Electrical equipment11 70 Bodywork12 Diagnosis13 Tests14 Wiring diagrams
Fiat Seicento Factory Service Manual (1998-2010)12 · Diagnosis
12 · Diagnostics

W10 Black smoke in exhaust

Make
Fiat
Model
Seicento Factory Service Manual
Year
1998–2010
Section
Emissions › W10 Black smoke in exhaust
DiagnosisW10 Black smoke in exhaust · page 1 of 2

W10 Black smoke in exhaust

A high degree of black smoke is noted in exhaust.

Step Validity Operation to be performed Test results
OK ! 🔧
Step Validity Operation to be performed OK Problems found Intervention
1 CHECK AIR CIRCUIT All OK Problems found Intervention
Check
– air cleaner conditions
– intactness and tightness of air delivery circuit
Go to Step 2 Damaged circuit part Replace part
PROCEDURE OP. 1048A
2 CHECK WITH DIAGNOSTIC TOOL All OK Problems found Intervention
Connect diagnostic tool (Examiner or other tool) to the diagnostic socket.
Check:
– no fault in engine ECU
– plausibility of all parameters
Go to Step 3 Detected error in ECU Continue as shown by the diagnostic tool
Failed dialogue with ECU Restore connection between engine ECU and diagnostic socket
(Wiring diagram: E5030 “PETROL ENGINE ELECTRONIC MANAGEMENT”)
3 ACTIVE TEST WITH DIAGNOSTIC TOOL All OK Problems found Intervention
With the diagnostic tool (Examiner or other tool) perform the active injector test Go to Step 4 Faulty injector Restore connection between injector and ECU, (Wiring diagram: E5030 “PETROL ENGINE ELECTRONIC MANAGEMENT”)
If required, replace injector
PROCEDURE OP. 1056A70

(Cont..)

Parts & tools for this job For 1998 Fiat Seicento

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