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grober said:Not a bad wee article as an intro to the VDO HFM engine management system. According to the article the 3 most common faults are
1. air mass meter
2. System ECU
3.The Overvoltage (protection)relay.
What they don't tell you is about the availability of the cheaper MAS sensor elements ( e.g. Pierburg http://www.msi-motor-service.de/ks/en/kataloge/pg_gesamtkatalog_en.asp from ECP) implying you have to buy an entire new MAS?
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