1. Jun 10, 2020 #1
   

   Max Green

   Hi all,
   
   My Megane has been running quite lumpy on idle recently. I know they’re a lumpy engine in general but the car drops a few revs, shudders, then returns to idle again.
   
   Any ideas what the problem could be?
   
   Cheers, Max

    
3. Jun 11, 2020 #2
   

   bobsan

   would suggest hooking upto scan-gauge and look for codes

    

   Max Green likes this.
4. Jun 13, 2020 #3
   

   oldschoolracer

   Maybe the cam phaser......

    

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