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Old 10-27-2008, 07:30 AM   #1
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Default Turbo bypass on stock ECU question

So into my parallel MS installation, I have some issues that I'm working out. I like to drive the car everyday, so what if I unplug the MS and plug the stock ECU back in, and take a piece of wire, pop the arm off the wastegate actuator, and wire the wastegate open. If I drive the car like this (point a to point b, not hammering on it) would this F things up or make it run like ****?
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Old 10-27-2008, 09:38 AM   #2
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If you still have the stock injectors, and drove really carefully, then you can probably do it.

But... there was a discussion a little while back saying that a turbo engine running below boost still pushes more air then its NA counterpart. So I dont how severely that will effect your fuel mixture. If you have a wideband, you can keep an eye on it.
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Old 10-27-2008, 10:12 AM   #3
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Why do you have to unplug the MS at all? If you want to run no boost or very low boost just wire the wastegate open like you said. Exhaust will be a lil louder than if air was flowing through the turbo instead.
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Old 10-27-2008, 09:53 PM   #4
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I think he is saying that if he needs to take his MS out to resoldier something or send it somewhere to get fixed, Can he drive around on stock ecu until it is fixed....
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Old 10-27-2008, 10:09 PM   #5
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keep in mind many of us have experienced our turbos make 3-6psi with the wastegate wired open. So if you have to, stay off the throttle.
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Old 10-28-2008, 10:59 AM   #6
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Is your MS using the stock MAF still? If not, you'd need to re-install that for the stock ECU. Stay away from WOT.
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