In this repair case, the customer complains that the engine warning lamp lights up while driving.
The following fault codes can be set:
-P0263 Cylinder 1 - Cylinder output/cylinder compensation fault
-P0266 Cylinder 2 - Cylinder output/cylinder compensation fault
-P0269 Cylinder 3 - Cylinder output/cylinder compensation fault
-P0272 Cylinder 4 - Cylinder output/cylinder compensation fault
In this case, the calibration of the crankshaft is faulty, which leads to the problems mentioned above.
To exclude other possible error causes, electrical and mechanical system tests should be performed (according to the vehicle manufacturer specifications).
If there are no other faults, the crankshaft sensor must be recalibrated using a suitable diagnostic unit.
Finally, a test drive and another error code query should be performed in order to check the repair work.
Please note that the vehicle manufacturer's repair and maintenance instructions are always to be observed and that such repair work should only be carried out by an authorised specialist workshop.
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.
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