dpfi to mpfi wont start help please

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Old Apr 19, 2007 | 08:58 PM
  #1  
egzo04's Avatar
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Default dpfi to mpfi wont start help please

im think all the wiring is correct,

i dont have all the vacuum lines hooked up correctly, do i need them connected for it to start?

i pulled out the spark plugs and cranked it, and its getting spark, i pulled the fuel injecters and cranked it, and sometimes they spray and sometimes they dont, im not sure if thats the probelem or not, im not sure if the injectors are bad, but i dont think they r, im using a pg7 ecu, and i orderd the harness on ebay, maybe the wiring is bad in the harness? or the injecter box? please tell me what you think,
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Old Apr 19, 2007 | 09:13 PM
  #2  
RCautoworks's Avatar
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Default Re: dpfi to mpfi wont start help please (egzo04)

What do you mean they spray, sometimes ?

First off fix your vacuum hoses, then go from there. Look back at your wiring, see if all injectors fire at the right time. Check to make sure spark is good
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Old Apr 19, 2007 | 09:21 PM
  #3  
egzo04's Avatar
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Default Re: dpfi to mpfi wont start help please (RCautoworks)

will the vacuum likes keep the car from starting?
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Old Apr 19, 2007 | 09:22 PM
  #4  
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Default Re: dpfi to mpfi wont start help please (egzo04)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egzo04 &raquo;</TD></TR><TR><TD CLASS="quote">will the vacuum likes keep the car from starting?
</TD></TR></TABLE>

Depends on how bad you screwed them up.
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Old Apr 20, 2007 | 09:18 AM
  #5  
4g hatch's Avatar
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From: back woods, va, usa
Default

make sure that you dont have the map,purge,and canister lines mixed up. plug all the other vacum nipples on the intake off. then get a injector light and plug it into your clips to see if they are pulsing right.
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Old Apr 20, 2007 | 11:03 AM
  #6  
AK_CRX's Avatar
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Default Re: (4g hatch)

check injector wiring, but also make sure your iat, aecv plugs are on the right sensors, and make sure you don't have the non-used dx plug (secondary throttle body) plugged into anything. All three of those plugs use the same plug style and its easy to get them mixed up. I don't think the vacuum lines being wrong would make it not start, no matter how bad they're screwed up
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Old Apr 20, 2007 | 11:08 AM
  #7  
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From: los angeles, ca, usa
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http://rywire.com/store/faqdes...4f69e

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Old Apr 20, 2007 | 06:32 PM
  #8  
Rywire's Avatar
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Default Re: (jdmef2er)

dont go by that pic unless you have my harness, it will screw you up more!
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Old Apr 20, 2007 | 07:45 PM
  #9  
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From: honky in, nc, usa
Default Re: (droppedcrxsi)

Proprietary software? Damn Ryan, drop a hint to a brother!
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Old Apr 20, 2007 | 10:16 PM
  #10  
Rywire's Avatar
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Default Re: (abnaasefmb)

What im sayin is that I swap pins at the dizzy so ppl dont have to swap pins at the ecu... So look at a dp to mp guide, and stick with it
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Old Apr 20, 2007 | 10:44 PM
  #11  
egzo04's Avatar
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Default Re: (4g hatch)

hm where can i get an injector light
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Old Apr 21, 2007 | 12:05 PM
  #12  
4g hatch's Avatar
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Default

the ones that i have acess to are blue point, but im sure there other brands. also is your fuel pump cutting on,and have you tried starting fluid. if you ge the map,and canister vacums that hook to the throttle body crossed it may crank but it won't run
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Old Apr 27, 2007 | 01:37 PM
  #13  
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From: sioux falls, SD
Default Re: (egzo04)

what dp to mp guide you talking about link maybe
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Old Apr 27, 2007 | 03:54 PM
  #14  
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From: bay area, ca, usa
Default Re: (damn_import_culture)

try this http://www.angelfire.com/d20/h....html
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Old Apr 27, 2007 | 03:56 PM
  #15  
Rywire's Avatar
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Default Re: (ridin_on_rims)

my fav dp to mp guide is on effinmotorworks
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