as the title says i just finished up my obd-1 conversion (it is a rywire harness...so wiring shouldnt be an issue) but for some reason my car still wont crank, here's the info i have right now:


-'90 crx dx
-d16z6 with cable si tranny
-p28 ecu
- dpfi-->mpfi-->obd-1 conversion harness made by rywire
- homemade ecu jumper harness (looks like crap, but inspected by rywire)

1) my battery is charged (12.5+ volts)
2) i have fuel (checked at fuel rail (injectors))
3) when i tried to crank the motor the rpm's (on tach, not motor) went to 1k


now every thing i can think of is hooked up/plugged in, so please give me some advice on what to look for next (im stumped)

 

you have spark?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">you have spark?</TD></TR></TABLE> i dont think so, when i try to crank the only thing i hear is fuel pressurising(sp)...... i dont even hear the beeping, when you turn the key on

 

also i forgot: if this matters......my reverse switch wires are cut (but i dont think that would be an issue?)

 

what kinda distributor are you using??
you can't use a obd0 distributor on a obd1 ecu...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RE- v8killa121 &raquo;</TD></TR><TR><TD CLASS="quote">what kinda distributor are you using??
you can't use a obd0 distributor on a obd1 ecu...</TD></TR></TABLE> its an obd-1 it's from a z6 also

 

try another battery, this happened to me, the volts are up becasue i hooked up a gauge to it, but it doesnt have enough cranking amps or whatever, try that and see what happens

 

Did you do the required wiring at the ecu? You still need to do a little wiring at the ecu even with any conversion in a DX.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondazc89 &raquo;</TD></TR><TR><TD CLASS="quote">try another battery, this happened to me, the volts are up becasue i hooked up a gauge to it, but it doesnt have enough cranking amps or whatever, try that and see what happens</TD></TR></TABLE> this battery should be good, i went and took it to autozone and had them charge it for a whole day before i tried starting it, it's an optima and it's still under a warranty<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">Did you do the required wiring at the ecu? You still need to do a little wiring at the ecu even with any conversion in a DX. </TD></TR></TABLE>a friend of mine did the jumper harness, and when i had my harness made by rywire...ryan checked it out he said it looked bad but it would work

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchinprogress &raquo;</TD></TR><TR><TD CLASS="quote"> this battery should be good, i went and took it to autozone and had them charge it for a whole day before i tried starting it, it's an optima and it's still under a warranty</TD></TR></TABLE>

test the voltage

 

test for cca

 

Other than the jumper harness, and the wiring from rywire, you are suppose to depin/repin a few wires at your stock ecu plugs. That needs to be done, or else you will never start the car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by YasRex &raquo;</TD></TR><TR><TD CLASS="quote">

test the voltage</TD></TR></TABLE>it's 12.5v<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1C9R9X1 &raquo;</TD></TR><TR><TD CLASS="quote">test for cca</TD></TR></TABLE>how can i do that?<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">Other than the jumper harness, and the wiring from rywire, you are suppose to depin/repin a few wires at your stock ecu plugs. That needs to be done, or else you will never start the car. </TD></TR></TABLE>really?? i thought that is what the jumper harness is for?? if not what wires are they?

 

ok the car did crank this time, but still hasnt turn'd over......what happened was: i tried to start the car and it almost turned over(well sounded like it would) then after a few times the battery sounded like it was gonna die(battery is still at 12.5 volts) now i also noticed on my gauge cluster: when i tuen the <U>key on</U> the rpm line goe's to 1k (with engine off) and the c.e.l,oil press.,brake,battery,and hatch lights come on the cluster.....even when all the doors are shut. as for the cel light: i grounded wire d4 (ryan @rywire said too) on my jumper harness, but it doesnt seem to work(no codes flash) so please if you have advice let me know

 

Not to thread jack but I am having the same problem with my swap. I have a 91 hf which now has a Z6 and a P28. I have a Ebay harness and a Rywire Vtec subharness.

What are these pins that you have to repin on the ECU, I haven't heard of that yet.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pinecone &raquo;</TD></TR><TR><TD CLASS="quote">Not to thread jack but I am having the same problem with my swap. I have a 91 hf which now has a Z6 and a P28. I have a Ebay harness and a Rywire Vtec subharness.

What are these pins that you have to repin on the ECU, I haven't heard of that yet.</TD></TR></TABLE>

You have an HF, so you don't have to repin anything. With the DX's you need to repin a few wires.

OP, did you get instructions with your harness?

 

Sweet thanks, back on topic

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">

You have an HF, so you don't have to repin anything. With the DX's you need to repin a few wires.

OP, did you get instructions with your harness?</TD></TR></TABLE> no i didnt get instructions, ryan said to just plug the harness in

 

My advice is to call rywire back. They're well known for helping their customers out after the sale.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jesterian &raquo;</TD></TR><TR><TD CLASS="quote">My advice is to call rywire back. They're well known for helping their customers out after the sale.</TD></TR></TABLE> thanks, i sent him a pm already

 

Ok, I made this guys harness, and he cant afford to buy our tried and tested ecu jumper, so I did my best with the hack that he sent me... I made it plug and play so he didnt have to do ANYTHING. Just plug the thing in.

You gotta tell us what you dont have man... spark? fuel? what is it? help us help u.

Sorry, but it just aggravates me when I see rywire and car wont start in the heading.... especially when you send me a hack of a ecu jumper to work with, and you keep changing your interior harness from dx and si expecting it to work.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by droppedcrxsi &raquo;</TD></TR><TR><TD CLASS="quote">Ok, I made this guys harness, and he cant afford to buy our tried and tested ecu jumper, so I did my best with the hack that he sent me... I made it plug and play so he didnt have to do ANYTHING. Just plug the thing in.

You gotta tell us what you dont have man... spark? fuel? what is it? help us help u.

Sorry, but it just aggravates me when I see rywire and car wont start in the heading.... especially when you send me a hack of a ecu jumper to work with, and you keep changing your interior harness from dx and si expecting it to work.</TD></TR></TABLE>

I hear ya .

Judging by your gauge cluster woes, it almost sounds as if it might be a ground problem. If the motor wont even crank, check the battery ground as well as the tranny to frame ground, then make sure you are getting voltage at the small terminal on the starter while the key is in the "start" position. Getting the motor to actually crank is the very first thing to solve here.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by droppedcrxsi &raquo;</TD></TR><TR><TD CLASS="quote">Ok, I made this guys harness, and he cant afford to buy our tried and tested ecu jumper, so I did my best with the hack that he sent me... I made it plug and play so he didnt have to do ANYTHING. Just plug the thing in.

You gotta tell us what you dont have man... spark? fuel? what is it? help us help u.

Sorry, but it just aggravates me when I see rywire and car wont start in the heading.... especially when you send me a hack of a ecu jumper to work with, and you keep changing your interior harness from dx and si expecting it to work.</TD></TR></TABLE>whoa man, the only reason rywire was in the title was to get help on somethin i might have overlooked (from people who have used the same stuff as me) read my post's i never once mention you or your company in a negative way... and about the jumper harness i mentioned how it was done by someone else (even said how you said it looked like ****). Also i did mention that the car does have fuel (im still not sure about spark) it is throwin a code. I did ground d4 but i still cant check codes, also b19 does have the green/red wire you told me too check on

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fourthgenhatchB17 &raquo;</TD></TR><TR><TD CLASS="quote">

I hear ya .

Judging by your gauge cluster woes, it almost sounds as if it might be a ground problem. If the motor wont even crank, check the battery ground as well as the tranny to frame ground, then make sure you are getting voltage at the small terminal on the starter while the key is in the "start" position. Getting the motor to actually crank is the very first thing to solve here. </TD></TR></TABLE>thank you

 

check for spark, ground the spark plug on a valve cover bolt and see if there is spark when you crank. If you ground the scs wire, and there is no code flashing then there is a problem...

if you have no codes.... cel light should have normal operation when d4 is not grounded, and solid cel if grounded.

sounds like a ground issue someplace... also, your gauge cluster dosent match your harness, so no wonder nothing works... think about it, the wires for ecu check light isnt even in the same place(possibly)

Ryan