Thumpy Idle?

littletodd18

Member +
Hi all,

Had the starlet back on the road for a week now and i've been driving gently so today gave it a bit of abuse, boost was staying under 0.8 bar which is all good...

When i got home i noticed the idle was very thumpy sounding, sounded lkek it was running on 3 cylinders but i took each lead off the plug 1 by 1 and they all made the engine almost cut out (which indicates all cylinders are firing)

So i am thinking there is a cylinder that is firing but just not enough, anyone know what this could be please?
 
Top