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Old Mar 24, 2007 | 11:34 PM
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From: reykjavík, iceland
Default bypass mode

can anyone explain this to me?

what it does, and how

thanks!
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Old Mar 24, 2007 | 11:46 PM
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it eliminates the hot coolant passing through the throttle body
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Old Mar 24, 2007 | 11:50 PM
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thank you, how do i do it? fast 90/90 combo
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Old Mar 25, 2007 | 02:33 AM
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I wouldn't even bother with that mod; the gains would be minimal. Besides, you live in Iceland.... it sounds like it is really cold there.
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Old Mar 25, 2007 | 02:51 AM
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Mechanical designs employ a filtration element made up of layers of media, such as paper, to arrest various types of suspended contaminants. As material builds up on the filtration media, the efficiency of the filter is reduced and oil-flow is restricted. This requires the periodic replacement, or cleaning, of the filter or its media.

Bypass filters only act upon a portion of the engine oil flow, typically less than 10%, whereas those that filter the whole stream are known as full-flow filters. In some engine designs, a primary full-flow filter is accompanied by a secondary bypass filter, with the latter filtering particles too small for the primary. This dual-filter design can increase the time between subsequent servicing of the lubrication system.[3]

Many full-flow mechanical filters incorporate an integrated pressure relief valve to allow a bypass mode. If the filtration element becomes completely clogged, this valve allows oil to bypass the filter, protecting the engine from oil starvation. The valve may also open in very cold conditions if a high viscosity oil is used.


Got that passage from oil filters on wikipedia. Bypass mode is also a mode when you talk about pcms. A throttle body bypass is what was eluded to earlier. In what context did you hear bypass mode? Maybe then your question can be answered accurately.
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Old Mar 25, 2007 | 10:15 AM
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thank you, just seen it in some sign's "bypass mode"

ddelallata yeahh.. its damn cold ;(
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Old Mar 25, 2007 | 02:55 PM
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I wouldn't touch it. I was thinking about doing it and I live in NY. I changed my mind when it started getting cold and for the first ten minutes of driving the throttle sticks. Once the water starts running through the TB it drives fine. You can pin point the moment the thermostat opens.
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Old Mar 29, 2007 | 05:58 PM
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Originally Posted by greatskiiiier
I wouldn't touch it. I was thinking about doing it and I live in NY. I changed my mind when it started getting cold and for the first ten minutes of driving the throttle sticks. Once the water starts running through the TB it drives fine. You can pin point the moment the thermostat opens.
really? ****, i'm in long island right now too. i thought this too but a week or two ago there was a thread where someone who lived where it was really cold did it and said he had no probs. i was all set to do it this weekend....before reading your post.
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