Crank Pulse Width

General Tuning Questions And Discussions
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brindo
Posts: 287
Joined: Mon Jun 29, 2009 9:43 am
Location: Western Queensland

Crank Pulse Width

Post by brindo »

Hi,
My ute at times can be a little troublesome to start at times and needs full throttle Clear Flood to fire.
I put some of this down to being the CNPC instead of the DRRR, but most of it I suspect is in the tune. This largely isn't a problem but my wife drives the ute more than I do while I sit at home worrying about Captivas. :(

The problem mainly occurs when the engine is warm, not hot or cold. Usually just after a short drive and then plays up on the restart.

There is an XDF labelled Jason Balogh and it has Crank Fuel Pulse Width vs Coolant temp and Crank Fuel Enleanment Multipler vs RPM.

Are these the areas I should be changing?
Has anyone had a similar experience? I would think with my ute, the supercharger may be somewhat of a restriction on cranking even with the pypass open so would tend to be a little richer in this area than a standard engine.
For my own benefit, can I simply cut and paste these into the usuall XDF I use now and it will work?
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The1
Posts: 4811
Joined: Mon Jan 04, 2010 10:23 am

Re: Crank Pulse Width

Post by The1 »

try changing to the lastest bin first is there is hot restart injector code loop issues with the earlier ones.
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