If the engine in the above vehicle sporadically stalls or cuts out completely, this might be caused by a faulty Hall sensor in the distributor.
The following error codes may be stored:
In the immobiliser system `the same as':
- 17978, `Data cable faulty, implausible signal, engine control unit, immobiliser active`.
In the engine system `the same as':
- 01087, 'Engine control unit basic setting'.
- 00546, 'Diagnosis interface/wiring harness faulty'.
The preventative measure/check [adjustment of the engine control unit on the immobiliser (in menu Basic Setting/Coding for engine control unit of mega macs)] causes the motor to start up again, however the problem with the engine turning off/stalling reoccurs. The above-mentioned "misguided" error codes could include inconsistent signals caused by a faulty Hall sensor.
To perform a long-lasting repair, the distributor must be completely replaced as Hall sensors are not available individually.
You must then delete the error codes and adapt and teach-in the engine control unit on the immobiliser, in the mega macs menu Basic Settings/Coding for engine control unit.
Important safety notice
The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.
The reprinting, distribution, reproduction, exploitation in any form and disclosure of the contents of this document, even in part, is prohibited without our express written approval and indication of the source. The schematic illustrations, figures and descriptions are for explanation and presentation of the document text and cannot be used as a basis for installation or design. All rights reserved.
Not helpful at all
Very helpful