Have the catilist convertor check and or the prey cat if equiped with one, for possible clogg.
If you are using a generic fault code reader it may not extract all the codes. Vagcom or VCDS is required. If engine management light is on there must be a fault stored but your fault code reader is not displaying it.
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Have the catilist convertor check and or the prey cat if equiped with one, for possible clogg.
If you are using a generic fault code reader it may not extract all the codes. Vagcom or VCDS is required. If engine management light is on there must be a fault stored but your fault code reader is not displaying it.