mpfi done but no fuel

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Old Apr 25, 2007 | 03:57 PM
  #1  
beatthisspeed69's Avatar
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From: bakersfield, california, united states
Default mpfi done but no fuel

dont with the mpfi conversion but no fuel ther is fuel getting to the fuel rail but not out of the injectors...im sure i have the injector wiring up but not sure about vaccum lines...if i dont hook up the map hoses up right will it make it not run..but that wont stop fuel from shooting out of the injectors right......and do the plugs on the injectors have to be in the right order if so wat are the color of wires coming off each injector plug?????
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Old Apr 25, 2007 | 04:13 PM
  #2  
julio_bOostamante's Avatar
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Default Re: mpfi done but no fuel (beatthisspeed69)

if you wired the injectors from the ECu it should be pinouts a1 a3 a5 a7

and they ahve to be in the right order/color

wire the yellow/black power wire to the injector box and from there all 4 re/black wires to the injectors to power them on.
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Old Apr 25, 2007 | 04:15 PM
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beatthisspeed69's Avatar
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Default Re: mpfi done but no fuel (julio_bOostamante)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by julio_bOostamante &raquo;</TD></TR><TR><TD CLASS="quote">if you wired the injectors from the ECu it should be pinouts a1 a3 a5 a7

and they ahve to be in the right order/color

wire the yellow/black power wire to the injector box and from there all 4 re/black wires to the injectors to power them on. </TD></TR></TABLE>


the only wires goin from the injector plugs from my ecu are a3 and a7 like the guide tell you to do
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Old Apr 25, 2007 | 04:23 PM
  #4  
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Default Re: mpfi done but no fuel (beatthisspeed69)

i dont trust it that way. i feel more comfortable knowing the signal is coming from the proper ECU location.

thats how i have done countless swaps..

injector - pin - color wire

#1 A1 brown
#2 A3 Red
#3 A5 light blue
#4 A7 yellow

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Old Apr 25, 2007 | 05:08 PM
  #5  
beatthisspeed69's Avatar
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then where will the wires from the dx injectors go???
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Old Apr 25, 2007 | 05:27 PM
  #6  
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Default Re: (beatthisspeed69)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beatthisspeed69 &raquo;</TD></TR><TR><TD CLASS="quote">then where will the wires from the dx injectors go???</TD></TR></TABLE>

so wat do i do with the old dx injector wires just leave them and not even connect them since im useing pin a1 and a5 from the ecu
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Old Apr 25, 2007 | 05:33 PM
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integrawow's Avatar
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Default

I want to know this information also.

It would be nice if someone could explain this stuff in a post in a step-by-step kind of way. There are soooo many guides for this process that are confusing, and one good post could clear the air on soooooooo many misunderstandings.
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