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Old 04-19-2007, 03:43 PM   #1
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can an exhaust leak cause Kr?
i have a slight exhaust leak at my egr tube and i get spikes on kr
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Old 04-19-2007, 03:45 PM   #2
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It can cause KR. How much is up in the air.

Think about your leak this way. That is unmetered air entering the intake. Possibly a huge vacuum leak causing you to be lean.
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Old 04-19-2007, 03:48 PM   #3
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sometimes i have 0 degrees at wot and others times i have 3-5 tops
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Old 04-19-2007, 03:57 PM   #4
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There are many factors that can cause KR in situations that appear to be identical at first.
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Old 04-19-2007, 04:02 PM   #5
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Exhaust leaks are bad which is why S1 guys especially should to check/fix their EM cracks before dropping pulley sizes. A crack in the EGR tube though minor is still not good. I went WOT for quite some time before I knew my EGR tube had a huge crack through it. The car ran great at WOT, but without a scantool at the time, who knows what kind of KR I was getting.
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