hey my friends civic wont start. were using a 95 d15b7 in a std hatch. we kept the dual point manifold on there since we only had the dual point ecu. now the prob is that it wont start, it tries to and sometimes sounds like it going to. any ideas on what it could be. we just need to get the car running for now. do u have to use the dual point dizzy?

 

You definitely CAN'T use the 95 distributor. If you have the DPFI distributor then put it back on. I think you can use the 88~91 MPFI distributor, but I'm not sure what wires you would have to use (would be left over with 2 wires that don't get used).

 

Actually, that's exactly what we're using right now. It's an obd0 zc distributor with the 2 wires for the cylinder position sensor left out. It sparks, and I smell fuel in the cylinders, so the only other thing I can think of is the spark timing.

Oh and there is also a check engine light for fuel injectors (16).

 

you can't use a MPFI dizzy on a DPFI car

 

also check the rotor and make sure its tight on there and isn't lost at all .. if its lose slip alittle loc-tite on it and screw it back in..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EF9Dreams &raquo;</TD></TR><TR><TD CLASS="quote">also check the rotor and make sure its tight on there and isn't lost at all .. if its lose slip alittle loc-tite on it and screw it back in..</TD></TR></TABLE>

I'll check that.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">you can't use a MPFI dizzy on a DPFI car</TD></TR></TABLE>

You're saying the dizzy won't work even if it's giving out a spark?

 

ttt, any other ideas?

 

Like said before, you cant use that ZC dizzy, you need a dx one. Period.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blah13 &raquo;</TD></TR><TR><TD CLASS="quote">Like said before, you cant use that ZC dizzy, you need a dx one. Period.</TD></TR></TABLE>

How do you support this? He left out the extra 2 wires for the CYP sensor. As long as he used the RIGHT wires and the spare wires aren't shorting out on anything the I don't think he should have a problem. Never tried it, but I don't see why it shouldn't work.

Fuel injectors, only suggestion I got is to check out your resistor box. What injectors are you using anyway? If they are the ones from the B7 then I don't think you should be running the resistor box at all. Some OBD1's are weird and need the box, but I don't know which ones those are. Ifyou are using injectors that are OBD0, then you need to add in the box.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4drEF &raquo;</TD></TR><TR><TD CLASS="quote">How do you support this? He left out the extra 2 wires for the CYP sensor. As long as he used the RIGHT wires and the spare wires aren't shorting out on anything the I don't think he should have a problem. Never tried it, but I don't see why it shouldn't work.</TD></TR></TABLE>

If you cant use a dpfi dizzy on an mpfi converted car, why do you think you can use a mpfi dizzy on a dpfi car? mpfi has a 7 wire plug, dpfi has a 5, there are differences, now honestly if he were to wire them up color to color it "may" work, but I've never heard of this, most people just use the right dizzy.

 

blah13 owned this thread...

no everyone, he must use obd0 DPFI distributor..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garlic jr &raquo;</TD></TR><TR><TD CLASS="quote">blah13 owned this thread...

no everyone, he must use obd0 DPFI distributor..</TD></TR></TABLE>

Try again,

I used a MPFI distributor on my mpfi-dpfi conversion just fine, you just have to rewire the plug on the mpfi distributor side with the plug for the distributor that is for the DPFI.

I was going from DPFI to MPFI though so It may be differnent.

If your getting spark and smell fuel, but throwing a code 16 well then about 4-5 times ive seen this happen it was the main relay.

 

^ u were using MPFI distributor with an mpfi conversion, thats what u are SUPPOSED to do...

this guy is saying he is still using dpfi manifold and on a newer DX motor but trying to use an mpfi distributor... thats what u CANNOT do.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blah13 &raquo;</TD></TR><TR><TD CLASS="quote">Like said before, you cant use that ZC dizzy, you need a dx one. Period.</TD></TR></TABLE>

I'm with this guy here.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garlic jr &raquo;</TD></TR><TR><TD CLASS="quote">^ u were using MPFI distributor with an mpfi conversion, thats what u are SUPPOSED to do...

this guy is saying he is still using dpfi manifold and on a newer DX motor but trying to use an mpfi distributor... thats what u CANNOT do.</TD></TR></TABLE>

I fig. I was just reading into it wrong.

 

 

So I can't use the mpfi dizzy.

I still have the old broken dpfi distributor. Is it possible to rebuild that dpfi dizzy using parts from the working mpfi distributor?

 

ill sell you mine for $30

 

sorry, I'd rather not spend money on a dpfi dizzy. If I were to spend money, I think I'd rather get the mpfi parts.

 

I still think you can use the MPFI one. The crank angle sensor has 4 wires on it instead of 2. These are what let the ECU know when to set the injectors off. If you pic the right 2 wires why would it not work? Yeah - I know, the plugs are different - duh. Swap plugs.

Anyway, as far as using parts from inside the MPFI dizzy into the DPFI one you can use all the internals that you can take out. The cap, rotor, and ignotor all work in both units.