22 · Diagnostics

Mixture strength error

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Examiner › Mixture strength error

‹ Prev Engine coolant leaks Next › Rich fuel system

Fault diagnosisMixture strength error

MIXTURE STRENGTH ERROR

1.2 16v, 1.6 16v, 1.8 16v, 2.4 20v

The diagnostic equipment signals the following error: Mixture strength

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
1.6 16v 2.4 20v	Connect the tester (Examiner or Examiner Plus) and transcribe the errors and environmental parameters Check for the 'Mixture strength' error only	End of diagnosis	'Upstream lambda probe' error present	See table Z56
			'Upstream lambda probe' error present	Continue to Step 1
			'Upstream lambda probe' error present	Identify and eliminate the cause of the problem
1.2 16v 1.8 16v	Connect the tester (Examiner or Examiner Plus) and transcribe the errors and environmental parameters Check for the 'Mixture strength' error only	End of diagnosis	'Upstream lambda probe' error present	See table Z56
			Only the 'Mixture strength', 'Misfire', 'Catalyzer' and/or 'Downstream Lambda signal' errors are present	Continue to Step 2
			Other errors present	Identify and eliminate the cause of the problem
1	CHECKING SIGNAL PLAUSIBILITY	All OK	Problems met	Operation
1.6 16v	Check the plausibility of the MAP sensor signal.	Continue to Step 2	The signal is not plausible	Replace the sensor Op. 1056B44
2.4 20v	Checking the plausibility of the flow meter signal.	Continue to Step 2	The signal is not plausible	Replace the flowmeter Op. 1056B12
2	ERROR DETAIL CHECK	All OK	Problems met	Operation
1.2 16v	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Above the upper limit'	See table Z52
1.2 16v	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Above the upper limit'	See table Z51
1.6 16v	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Rich system'	See table Z51
			The detail is 'Idle too rich'	See table Z51
			The detail is 'Lean system'	See table Z52
			The detail is 'Idle too lean'	See table Z52
1.8 16v	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Above the upper limit'	See table Z51
1.8 16v	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Below lower limit'	See table Z52
2.4 20v	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Above the upper limit'	See table Z52
			The detail is 'Air leaks downstream of flow meter'	See table Z52
			The detail is 'Below lower limit'	See table Z51

‹ Prev Engine coolant leaks Next › Rich fuel system

Parts & tools for this job For 2001 Fiat Stilo

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.