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Discussion Starter #1 (Edited)
I’ve just noticed my zafira has started pulsing when it’s idle has anyone seen this before ? The car idles at just over 1k then drops below 1k then goes back to just over 1k
 

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Petrol engine? on the 1.8 it can be the MAF sensor or a vacuum leak (hose split or come loose).
Try cleaning the MAF sensor, maybe the throttle body too. If a diesel engine maybe check the same stuff, could be EGR valve or something.
 
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