Hi
The VSS that I have is one that hooks up to the speedo cable, so if I dyno my car I would need to make arrangements to trigger it. I'm pretty sure the VSS. informs the management software that the car has stopped, you wouldn't want to have an error code show up during tuning.
I now have plug & play Autronic SM4 ecu for my car which has an Autotune feature, I just need to buy O2 interface for it and then I could do most of the tuning on the road.
Steve
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STI powered 1303 in the works.
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