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Rev on start up


Initial_j
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Bit of a query 

 

Whenever I start my 350, literally as I turn the key it revs to around 2.5k for a split second, like a blip of the throttle then straight back down to the usual idle at 1k

 

Do they all do this?

 

Its hardly a problem and maybe im just over cautious but I’d of thought you want a cold engine to rev as low as possible. 

 

Its been remapped by Abby a while ago, not sure if it’s something that’s been added to the map if it’s not a standard feature. Thoughts?

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Mine runs at 2.5 k revs on startup and drops gradually down to around 800 after a few minutes. Had the rev up done at TDI northern.

Normal for startup I believe.

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All normal, ECU forces a richer air/fuel (A/F) mixture on start up (hence the initial high rpm) to avoid the engine stalling. Abbey would have tweaked the A/F map/table but I highly doubt they tweaked the cranking table...

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