Signal Too High

Signal too high

Checking the intake system
Check the intake system for leakage. In particular, check the hoses and hose connectors between the mass air flow (MAF) sensor and the throttle unit. Check for leakage and damage.
Check the intake system for blockages (e.g. contaminants in the throttle).
Remedy as necessary.

Other information
- Air leaks in the intake system, checking Air Leaks in the Intake System, Checking
- Mass air flow (MAF) sensor Service and Repair





Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on
- Read off the correction factor for mass air flow and note it
- Start the engine. Increase the engine speed (RPM) a couple of times.
Read off the correction factor for mass air flow and check that the adaptation value is approaching 1. A normal value for the mass air flow correction factor is 0.8-1.2.





Is the value correct?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the intake system

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