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Old 17-02-2015, 02:48 PM   #1
Mr Hardware
Flairs - Truckers Delight
 
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Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
Tech Writer: Recognition for the technical writers of AFF - Issue reason: The excellent how to on LPG jet cleaning. 
Default Did we ever figure out what that hesitation was?

I've now owned 4 I6 AU's, and every single one seems to be afflicted by a slight hesitation on decent accelleration from standstill. I'm 99% sure it's a petrol delivery issue, possibly not being able to get enough (too much?) fuel into the chambers in time.

Symptom: Sitting at intersection, want to use anything above 50% throttle as soon as clear to do so, car hesitates slightly before pouring on the power. Doesn't hesitate or stutter from then on, until takeoff from standstill happens again. Also doesn't happen if you only use say 20% throttle.

My Gas AU does it when running on petrol, but not on Gas. On gas the throttle response is exacting and without any hesitation whatsoever. Flick it back to petrol, and she'll hesitate.

What's the story? Injectors? Fuel pump? something in between?
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