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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
Posts: 5,565
First of all, backfire of that magnitude is very uncommon on turbocharged engines as intake path between CIS and intake is much much longer.

Second, you have to use LM-1 or such to find out what is happening on boost transition. Playing it "by the ear" is not to do you any good. It might go rich or lean or you migh be loosing boost etc.

What about the hole in the red pipe going to intake? Is it plugged now?

I would close pop-off valve shut, pressurize whole system to check for leaks and then do LM-1 run (while logging revs too) to begin with. Otherwise you are just shooting in the dark.

Thank you for your time,
Old 01-02-2008, 12:46 AM
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