3233218 - Z50 MIXTURE STRENGTH ERROR

The diagnostic equipment signals the following error: Mixture strength

		Results of the tests
0	PRELIMINARY CHECKS	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instrument) 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 SENSOR SIGNAL ERROR
			Only the 'Mixture strength', 'Misfire', 'Catalyzer' and/or 'Downstream Lambda signal' errors are present	Continue to Step 1
			Other errors present	Identify and eliminate the cause of the problem
1	CHECKING SIGNAL PLAUSIBILITY	All OK	Problems met	Operation
	Checking the plausibility of the flow meter signal See Test   1056BX  MAP/flow meter signal plausibility	Continue to Step 2	The signal is not plausible	Replace the flowmeter Op.   1056B09
2	ERROR DETAIL CHECK	All OK	Problems met	Operation
	Check the detail of the 'Mixture strength' error	End of diagnosis	The detail is 'Above the upper limit'	See table   Z52  LEAN FUEL SYSTEM Search for the fault starting from another symptom'
			The detail is 'Air leaks downstream of flow meter'	See table   Z52  LEAN FUEL SYSTEM Search for the fault starting from another symptom'
			The detail is 'Below lower limit'	See table   Z51  RICH FUEL SYSTEM Search for the fault starting from another symptom'