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 Post subject: FUEL PUMP
PostPosted: Wed Mar 25, 2015 9:00 am 
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Joined: Fri Mar 07, 2008 9:21 am
Posts: 1918
Location: Austin
So I know I should really have a handle on this but it seems I may not..

I run a Mr. Goodwrench up to 4.5 PSI pump... a Holley Reg.. set at 3 PSI . Dual 44's

It seem everytime it gets warm outside.. after the motor heats up I have really bad off idle power..

Always seems to pick up say once I get out of the Idle Jets.. but what It does is feel ,smell, and sound like I have a flooding issue..

I sorta head back to the FUEL PUMP question because it acts the same way with my 40's on it..

While it was cold the last few months.. not a single issue.. then like yesterday when it warmed up..
it was there again!!

ANY THOUGHTS??

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 Post subject: Re: FUEL PUMP
PostPosted: Wed Mar 25, 2015 9:05 am 
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Der Luft Doktor
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Joined: Tue Jan 22, 2008 3:31 pm
Posts: 7220
Location: OC CA
Your mixture will change a LOT going from cold to fully warmed up. On my wideband sensor, from when it's stone cold to warmed up is like a difference in 2-3:1 AFR. Warm the car up fully, then jet it.

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