If the error described above occurs in conjunction with the following list of fault codes, a possible cause is clogged/blocked EGR channels (exhaust gas recirculation channel).
Fault codes:
Misfire identified on cylinders 1/2/3/4
In order to exclude a defect with the EGR valve (exhaust gas recirculation valve) and also to exclude any other causes of the fault, a check should first of all be run on the periphery of the EGR system.
If no errors are found here, proceed as follows:
Finally a test drive should be carried out and the error memory read once again.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or 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, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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