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Major hesitation and backfire past 4500rpm


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I replaced the air intake for my EA82T. The piece that leads from the MAF to the Turbo. THe old one had a massive leak, and i drove it like that until my replacement part arived (thanks a mill to Calebz).

 

But now, when i romp on it and get past 4500rpm the car studders, and hesitates real bad.

 

Anyone have any idea why?

 

-Brian

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i didnt see any. Kinda hard to on the way home cause its dark.

 

Im thinking it has a leak somwhere. I have a million brittle hoses under the hood, just no money to repair them. While replacing the air intake i found one of the vacuum switches had busted and was leaking, so i plugged the lines and took the switch out.

 

-Brian

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I have 20ft of some rubber hose i used for my boost gauge, but its real thin and ive already melted it once.

 

Maybe i'll snake some from work. But right now, after spending $13 to have this air intake shipped to me, my RX fun money is sitting at right about -$13.00

 

Maybe in 2 weeks when i get paid again.

 

 

If it were an air leak, would the carb cleaner trick still work to locate it? I used a can of carb cleaner while the EA82 sat at idle, and sprayed around everywhere but the idle never picked up and the engine showed know signs of a leak. Also, under boost wouldnt the leak be even more apparent?

 

And how would the leak cause backfire? Its like a miss-fire backfire, not out the tailpipe but a severe miss. Almost like a bad Coil.

 

-Brian

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