Quote:
Originally Posted by Tcoat
That isn't the pump. That is the injectors changing over. The pump is cam driven and on all the time so it doesn't kick in at idle.
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Yeah, the DI injectors are noisy for sure, but always have been. This new noise is the pump. You're right, it isn't because the pump is 'kicking on', but just like when the crickets would only come on at idle when the direct injectors started firing, the new pump makes a loud mechanical noise instead. My point is, for those pondering the new pump TSB, the pump is still noisy (as most, if not all, HPFPs are), but it isn't crickets.