22 · Diagnostics

Mixture strength error

Fault diagnosisMixture strength error

MIXTURE STRENGTH ERROR

1.6 TS, 2.0 TS

The diagnostic equipment signals the following error: Mixture strength

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment (Examiner or Examiner Plus) and record the errors and environmental parameters. Check for the 'Mixture strength' error only		The 'Upstream Lambda signal' error is present	See table Z56
			Only the 'Mixture strength', 'Misfire', 'Catalyzer' and/or 'Downstream Lambda signal' errors are present	Continue to Step 1
			Other errors are present	Identify and eliminate the cause of the problem
1	SIGNAL PLAUSIBILITY CHECK	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. 1056B12
2	ERROR DETAIL CHECK	All OK	Problems met	Operation
	Check the detail of the 'Mixture strength' error		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 the lower limit'	See table Z51

3.2 V6

The diagnostic equipment signals the following error: Mixture strength

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment (Examiner or Examiner Plus) and record the errors and environmental parameters. Check for the 'Mixture strength' error only	End of diagnosis	The 'Upstream Lambda signal' error is present	Continue according to the instructions in See table Z56
			Only the 'Mixture strength', 'Misfire', 'Catalyzer' and/or 'Downstream Lambda signal' errors are present	Continue to Step 1
			Other errors are present	Identify and eliminate the cause of the problem
1	SIGNAL PLAUSIBILITY CHECK	All OK	Problems met	Operation
	Checking the plausibility of the flow meter signal by carrying out the Test See Test 1056BX MAP/flow meter signal plausibility	Continue to Step 2	The signal is not plausible	Replace the flow meter Op. 1056B12
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
			The detail is 'Air leaks downstream of flow meter'	See table Z52
			The detail is 'Below the lower limit'	See table Z51

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