iite so i got a swap in my 91 civic si.. its a jdm d15b.. the motor is healthy and clean as ***.. problem is that the car will turn over but wont really run.. like i turn key and it turns over then runs for like 1-3sec then it shuts off..all the hoses are connected right.. timing is not off its good.. someone told me to get starter fluid since i changed the manifold.. to see if it has leaks i did that and it has no leaks no nothin but the car turns over and runs for like 5 sec wwen u spray starter fluid in the throttle (sp) body.. but then wen u push the gas it cuts off..the car is gettin spark.. the fuel pump works ..map sensor is fine.. car is gettin enough fuel so i jus duno why its not startin.. any help would be good.. o yea and i changed the spark plugs and spark plug wires and dizzy is brand new..

 

o yea wen u put your hand over the throttle body it runs

 

double check vacuum lines and where they go, maybe a gasket is bad, did you change the tb and intake manifold gaskets. also check the tps sensor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by (760)doogie &raquo;</TD></TR><TR><TD CLASS="quote">double check vacuum lines and where they go, maybe a gasket is bad, did you change the tb and intake manifold gaskets. also check the tps sensor</TD></TR></TABLE>

gasket for the manifold is brand new.. and tb i didnt take it off at all so its still good.. but im goin to double check all sensors

 

ok so your car runs for about 1-3 sec, what is your total set up, what ecu are you running and is every thing converted over to obd1, that same thing happened to me with my set up, all was obd1 but the ecu, as soon as i convetted every thing over, the car ran fine....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCRXTURBO20916 &raquo;</TD></TR><TR><TD CLASS="quote">ok so your car runs for about 1-3 sec, what is your total set up, what ecu are you running and is every thing converted over to obd1, that same thing happened to me with my set up, all was obd1 but the ecu, as soon as i convetted every thing over, the car ran fine....</TD></TR></TABLE>

na i converted it to obd0.. and im usin stock pr3 ecu (obd0 b16)

 

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

na i converted it to obd0.. and im usin stock pr3 ecu (obd0 b16)</TD></TR></TABLE>

wrong ecu.


and when you say you changed the manifold. what was the old manifold and what is the new manifold? I'm guessing you're using the TB from the new manifold since you said you never had it off. Also, how did you "convert it to OBD0"?

 

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

wrong ecu.


and when you say you changed the manifold. what was the old manifold and what is the new manifold? I'm guessing you're using the TB from the new manifold since you said you never had it off. Also, how did you "convert it to OBD0"? </TD></TR></TABLE>

im usin the stock manifold that came on the car its off the d16a6 (91 si motor) so i jus took off the whole manifold n bolted it to the new motor so all the sensors n etc would line up and i also got the harness to convert obd1 dizzy to obd0

 

yeah you did but didnt realy convert it over, because the obd0 diz and the obd1 diz have differnt internals that what i thought, i think you need to convert it to obd1 that what i would do....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCRXTURBO20916 &raquo;</TD></TR><TR><TD CLASS="quote">yeah you did but didnt realy convert it over, because the obd0 diz and the obd1 diz have differnt internals that what i thought, i think you need to convert it to obd1 that what i would do....</TD></TR></TABLE>

but the car is gettin spark tho cuz it starts but doesnt stay running

 

bump...

 

yeah i know, that how my car was, had spark, turn on the car ran for a sec, and shut off, pored fuel in cyl, ran for a few more sec shut off, not untill i converted every thing to obd1 car started up and ran fine after..

 

the OBD1 distributor will not work with the OBD0 ECU

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCRXTURBO20916 &raquo;</TD></TR><TR><TD CLASS="quote">yeah i know, that how my car was, had spark, turn on the car ran for a sec, and shut off, pored fuel in cyl, ran for a few more sec shut off, not untill i converted every thing to obd1 car started up and ran fine after.. </TD></TR></TABLE>

ok this might sound dumb lol (im jus gettin off work) but how do i go about convertin it.. do i

1 use a obd0 dizzy and convert it to obd1

or

2 use a obd1 dizzy and convert it to obd0

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">the OBD1 distributor will not work with the OBD0 ECU</TD></TR></TABLE>

thats the reason why it would run for a bit then cut off?? im gonna find another dizzy n order the harness im gonna ask my boy about hte site he sent me last time so i can order it tonight

 

if im corect i dont think the make obd0 diz, what you did was fine with the diz conversion now you need to get a obd1 ecu, o2 sensor and a jumper harness.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCRXTURBO20916 &raquo;</TD></TR><TR><TD CLASS="quote">if im corect i dont think the make obd0 diz, what you did was fine with the diz conversion now you need to get a obd1 ecu, o2 sensor and a jumper harness.</TD></TR></TABLE>

so your sayin i should get the step up harness to go from obd0 to obd1?

 

ok i had the same problem on my ef four door disconnect the header from the cat and try to start the car ur cat mite be clogged mine was

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowcivic90 &raquo;</TD></TR><TR><TD CLASS="quote">ok i had the same problem on my ef four door disconnect the header from the cat and try to start the car ur cat mite be clogged mine was </TD></TR></TABLE>

car doesnt have a cat jus a resonator

 

you have OBD0 ECU and OBD1 distributor - won't work - you need to use an OBD0 distributor or convert to OBD1 - none of the MPFI OBD0 distributors will bolt to the head unless you modify the attaching arms - to convert to OBD1, you need OBD1 ECU and OBD0 to OBD1 ECU jumper harness - depending on which ECU you use, you may need 4-wire O2 sensor - in any case, whether it is running OBD0 or OBD1, if you have the OBD1 injectors, you need to remove the injector resistor box - if you have OBD0 injectors, then leave the injector resistor box in the system

 

i got the jumper harness today n slapped in my p28 and the car started right up.. now i jus have to find out why the fan is not cutting on and adjust the throttle cable n clutch cable .. and find out why the car isnt revvin pass 4000 then im good to go

 

CHECK YOUR tps, throttle postion sensor, turn it counter clock wise... tps is located on the throttle body on the back side facing your fire wall... it has three prong wires conected to it.

 

I know TPS wires vary from different motors, i tried using a d series tps on my b16 and I had to switch the two signal wires. something to consider