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| Newbie Forum: Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. Probationary Members must limit their tech posts to this forum and sub-forums. |
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05-25-2012, 06:06 PM
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#1 (permalink)
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Proven Member
From: edmonton, AB, Canada
Registered: May 2009
Reputation: 
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Leaning out
Finally finished pump rewire . Now i am leaning out when i go onto throttle not wot..Can i adjust that using the maf-t ? ...I should be running pig rich , with the walbro 255 and rewired ..Shouldn't i  ...All help would be appreciated ..Never played with maft setting and i don't know what it can adjust just yet  ....
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05-25-2012, 06:42 PM
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#2 (permalink)
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Proven Member
From: Fountain, Colorado
Registered: Sep 2011
Reputation:
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Are you sure your fuel pump isn't going out? This literally happened to me a few days ago and it turned out to be a bad pump.
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05-25-2012, 06:44 PM
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#3 (permalink)
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Proven Member
From: edmonton, AB, Canada
Registered: May 2009
Reputation:
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Its Not the pump , Just had it out ..Had it checked ..Tank is nice and clean , so its not clogging...I will change the fuel filter tomorrow , maybe that's the problem..Will also check the volts going to the relay tomorrow
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05-25-2012, 06:49 PM
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#4 (permalink)
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Proven Member
From: Fountain, Colorado
Registered: Sep 2011
Reputation:
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Is everything grounded properly? If this just started to happen after the rewire I would double check all your wiring.
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05-25-2012, 07:20 PM
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#5 (permalink)
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Proven Member
From: edmonton, AB, Canada
Registered: May 2009
Reputation:
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Started after the rewire , when i go into wot ..it evens out ..Just don't like the whole lean when pressing the throttle , and lack of power
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05-25-2012, 07:47 PM
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#6 (permalink)
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Proven Member
From: Fountain, Colorado
Registered: Sep 2011
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I hear ya man. Going lean is a scary thing. I hope you figure it out bro. Sorry I couldn't help much.
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05-31-2012, 11:01 PM
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#7 (permalink)
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Proven Member
From: edmonton, AB, Canada
Registered: May 2009
Reputation:
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Can anyone help , still leaning out when going on the throttle ..Little choppy untill i go wot ..normal-lean at idel ..Normal when warm ..Lean while on throttle ..Normal while Wot
Rewire =good ground ,good power etc
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05-31-2012, 11:16 PM
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#8 (permalink)
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DSM Wiseman
From: Black Forest, Colorado
Registered: Jun 2011
Reputation: 
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What fuel pressure regulator are you using? Rewiring the fuel pump shouldn't affect A/F ratio at all (rich or lean) so long as the pump is functioning and properly regulated. Also, what gauge wire did you use for the rewire?
____________________________
16g/gas- 14.3@95
16g/E85- 12.7@108
H1E/E85- ?
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06-01-2012, 07:38 AM
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#10 (permalink)
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Proven Member
From: vero beach, Florida
Registered: Dec 2004
Reputation:
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your absolutely sure it wasnt doing that before?, you could go on your maft and turn your middle knob a few clicks richer to see what happens.
I dont see an Afpr on your mod list, a 255 has been commonly known to overrun a stock regulator, i see you have a a/f ratio gauge, i assume its a narrowband advanced auto parts type? well if so, you should never use that as a reference tool to your actual a/f ratio.
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-Brian, Check out my build thread!
Last edited by compression; 06-01-2012 at 07:41 AM.
Reason: Auto-merged with previous post to prevent "bumping" within a 24 hour period
Tips on avoiding the auto-merge feature - http://www.dsmtuners.com/forums/faq.php?faq=vb_faq#faq_bumping
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06-20-2012, 12:03 PM
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#11 (permalink)
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Proven Member
From: edmonton, AB, Canada
Registered: May 2009
Reputation:
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I forgot i had this thread up ...I think its the ground from the pump (the one that is still in the plug ) ..Can i just cut it before the plug and ground it??
The maft could be set to run to lean also ..(all settings are set to f ) what knob to i adjust and in what mode?
Still has the stock fpr
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