Quote:
Originally Posted by Nezil
I’m not sure you’ll get a CEL from venting to atmosphere, you’ll just be running rich by the amount of air that’s vented. This probably isn’t a big problem, but you will be increasing lag, as you said.
Boost pressure is measured way downstream from the DV, so any leaks / better sealing would only be noticed if you weren’t meeting or are now better meeting boost target. You’d be able to tell that from logs, but not from dyno or butt dyno.
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I'm not saying you'll get a CEL from venting to atmosphere. I'm saying the DME will recognize different diverter valve function and interpret it as a malfunction and issuing a CEL. It is possible a CEL can happen due to venting too much boost off at once, but that wasn't what I was implying. The DFB DV+ does this and offers a different configuration to prevent the CEL. Turbosmart is only available in one configuration and doesn't mention anything about the CEL.