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The mkiv Supra Owners Club

uneven engaging turbo?


bodilx6
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When I nail it in second gear and i'm about to pass through 3-4000 rpm where the second turbo comes online, it feels as if it can't decide if it really wants to. The car kind of hesitates the goes and hesitates again before it really pulls as it should. I'm sure its the turbo (or something related) thats causing the uneven pulling not the engine. It pulls perfectly in 1st, 3rd and up. It only happens at WOT or close to that.

 

It started doing this recently. Nothing has been changed on the car. Only thing I can think of is that one of the two vacuum lines connected to the second turbos VSV (I think its called) popped of some time ago and the second turbo didn't come online due to this, but that should be fastend and I can't think of how that should cause it. Especially since its only happening in 2nd gear.

 

Any ideas of whats causing this?

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