DPFI to MPFI no spark but priming of fuel pump

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Old Jan 1, 2006 | 06:59 AM
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90jdmcrxdude's Avatar
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Default DPFI to MPFI no spark but priming of fuel pump

I did the swap all the wiring is correct. And when I went to start the car all it does is crank over but it doesnt start. I used to get a loud vibration from the relay under the dash, but that stopped. There is a spark every once and a while from cylinder 2 and 4, but nothing in 1 and 3. I changed the distributer but the same thing is happening. Someone help me!!!
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Old Jan 2, 2006 | 02:52 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (90jdmcrxdude)

I'm having the same problem. Even switched out the coil & ignitor. Still nothing.
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Old Jan 2, 2006 | 02:59 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (91' LS-VTEC)

are you 110% sure the 2 white wires on the dizzy are not switched...only one way to find out...depin and switch...hopefully its just that which is the problem
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Old Jan 2, 2006 | 03:08 PM
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i had a very similiar problem.. swapped the 2 white wires and it runs like perfect.
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Old Jan 2, 2006 | 03:27 PM
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Default Re: (green91)

wiring check
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Old Jan 2, 2006 | 04:59 PM
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well the problem with checking the wiring is both white wires are identicle.. no distunguishing them. just de-pin and swap them. wont hurt anything if thats not the problem.
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Old Jan 2, 2006 | 05:16 PM
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Default Re: (green91)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by green91 &raquo;</TD></TR><TR><TD CLASS="quote">well the problem with checking the wiring is both white wires are identicle.. no distunguishing them. just de-pin and swap them. wont hurt anything if thats not the problem.</TD></TR></TABLE>

what he said
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Old Jan 3, 2006 | 07:07 AM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (mattie_96)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mattie_96 &raquo;</TD></TR><TR><TD CLASS="quote">are you 110% sure the 2 white wires on the dizzy are not switched...only one way to find out...depin and switch...hopefully its just that which is the problem</TD></TR></TABLE>

2? theres 4 white wires & 3 orange wires on one plug. Then 1 black & 1 blue on the other plug. What 2 white wires?
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Old Jan 4, 2006 | 07:42 AM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (91' LS-VTEC)

^^^
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Old Jan 4, 2006 | 02:41 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (mattie_96)

Yeah I went out that night after I posted this and switched the two dizzy wires and now it runs like a champ with a new set of spark plugs I love it
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Old Jan 4, 2006 | 03:01 PM
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congrats on completeling the most worthwhile and easy conversion!
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Old Jan 4, 2006 | 05:45 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (90jdmcrxdude)

Witch 2 white wires?

theres 4 white wires & 3 orange wires on one plug. Then 1 black & 1 blue on the other plug. What 2 white wires?
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Old Jan 4, 2006 | 06:24 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (91' LS-VTEC)

Heres a picture of the wiring for the distributer https://honda-tech.com/zerothread?id=1063804
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Old Jan 4, 2006 | 08:09 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (90jdmcrxdude)




---------------------white-------------------
blue----------------orange-----orange/blue
blue/yellow--------white-------white/blue
---------------------blank------------------


I'm lost or just retarded, you guys keep saying 2 white wires. these both show only one.
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Old Jan 4, 2006 | 10:05 PM
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Default Re: DPFI to MPFI no spark but priming of fuel pump (91' LS-VTEC)

Just tried another dizzy. one of my b16 (obd0) same plugs just diffrent legs. and got no spark. anyone have any ideas?
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Old Jan 4, 2006 | 10:16 PM
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tried switching the wires got confused dont understand what 2 white wires
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Old Jan 5, 2006 | 06:33 AM
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Default Re: (kennyc)

Its the white wire and the tan wire they look the same ones in the center and the others like on the bottom look at the picture.
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