Ok we got a 90 dx with a zc black top already swaped in. The last people gave up on the swap cuz they could not get it to start. I already check the MPFI and they did a **** poor conversion on it. The ecu plugs and they butchered that to all hell. But I think I have that staight. The didnt even have anything going to the a3 and a5 injector pinouts. Wires were so bad I ran brand new wires from the ecu to the injectors directly. Engine still wount start. Any suggestion would be helpful. Thanx in advance.

 

is it a fuel or spark problem

chancesa are its a wiring problem that they fucked up and you overlooked... probaly just one of those things you gota check 4 or 5 times than you finaly see what it was

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si0385. &raquo;</TD></TR><TR><TD CLASS="quote">is it a fuel or spark problem

chancesa are its a wiring problem that they fucked up and you overlooked... probaly just one of those things you gota check 4 or 5 times than you finaly see what it was</TD></TR></TABLE>


yea i agree sound like wirieng porb.what codes if any are the ecu showing?check for spark by putting screw diver in 1. pug wire(end for the spark plug) and hold it by the vlave cover nut if u see it spraking u got a spark. what does it do when u try to turn it over?try to find an si harnees see if it fixes the prob.if all eles fails u can alwas get the harness that goes tohugh fire wall with the ecu plugs on it and replace it will a better one with out cut wires.

 

OK, its getting spark already checked that. pretty sure its getting fuel cuz i smell gas when i take out the spark plugs and turn over the engine. Any other ideas. This one has me really stumped.

 

is it throwing any codes?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mantis92gsr &raquo;</TD></TR><TR><TD CLASS="quote">OK, its getting spark already checked that. pretty sure its getting fuel cuz i smell gas when i take out the spark plugs and turn over the engine. Any other ideas. This one has me really stumped.</TD></TR></TABLE>
do you have the spark plugs wired correctly? DOHC ZC is different from D15 or D16

 

You may want to check out the ZC Resource forum.

 

i have a soild ecu light

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h22_crx &raquo;</TD></TR><TR><TD CLASS="quote">i have a soild ecu light</TD></TR></TABLE>


i think that means u have a bad ecu.. correct me if i am wrong my fellow Ef'ers

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h22_crx &raquo;</TD></TR><TR><TD CLASS="quote">i have a soild ecu light</TD></TR></TABLE>
Swap the ECU.
If its like the bad PR3 I once had the car would spin over, had spark, had fuel, but sure as hell wouldn't crank. Bought a new ECU, and voila. By the way, I have 2 spare ECUs, 1 PO6 Si, and 1 PG7 DOHC ZC if you need one cheap and quick, let me know.

 

Wait, are h22_crx and mantis92gsr the same person, or are you both talking about the same car?

 

If they didn't have fuel wired right, they probably didn't even swap the tps wires. Also check that they used the right plug for the iacv i forget what colors its supposed to be.(not saying anyone has done this or anything lol, come on it was my first swap)

 

its was a bad ground