Hi guys, had the mass air flow unplugged for a while as having it plugged in results in really bad chugging till engine gets hot. Finally got a new one (200 quid) and put it on, plugged it in and engine is chugging like the old one. But unplugging it makes the engine run smooth. Had glow plugs changed, had glow plug control module changed as originally thought that was causing then chugging. Now at a complete loss ??? Can anyone help? Car is e90 330D 245ps
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Last edited by Stoo1701; 09-12-2019 at 03:58 AM.