engine wont start! help!

[jdmbozhko]

hey i have a problem on my 94 dc2 and and put a swap from a 98 gsr i changed the alternator dizzy and injectors to fit my obd1 engine harness everything plugged in perfect so i know i did everything right there..
but for some reason i am not getting any power to the ecu. i have a jdm p72 and i switch my ignitioin to 2 and it doesnt show a check engine light which means my ecu is not getting any power anyone know what can be wrong with the wiring or why my ecu is not getting power let me know thanks.

 

[jdmjim]

im shure u already checked the fuse. I would look closely at the wiring and see if anything got nicked or damaged during the install.

 

[teggyg35]

Did you check the 15amp fuses for the ecu?

 

[jdmbozhko]

no everything with the wiring is good its a uncut harness never chopped or anything i took the old one out because it was cut and put the new one on and my buddy checked the fuses but im gonna check for my self today and if anything ill let you guys know whats good.

 

[teggyg35]

ecu cuold be bad its self..

 

[jdmbozhko]

i checked all the fuses they are good and the ecu is a jdm p72 and it is also good. like the srs, door open,abs, and battery lights turn on but the check engine light doesnt turn on and my fuel pump doesnt turn on either....is there a way i can maybe wire them both in directly? that would be the "i dont give a ****" way to do it but i just wanna get it running but if anyone knows of the right way or the problem please let me know thanks

 

[jdmjim]

i pull up a wiring diagram 4 u tommrow.

 

[jdmbozhko]

for the harness inside the car like under the dash or where? and thanks

 

[jdmjim]

i pulled it up earlier but i cant print or enlarge it form home so its too small to read, but it is inside and outside engine wiring.

 

[jdmbozhko]

oh thats exacty what i need. well i got the outside one i just need the inside one..but the weird thing is is that it worked before the check engine light turned on when i put the key on 2 and it was reading my ecu and my fuel pump was on it just decided to stop one day and i hate electrical on cars if it wasnt for that i would have had my teggy painted and rolling.

 

[xusake]

maybe it just your ecu since you said it jdm? try a oem ecu p72 instead?

 

[jdmbozhko]

siht can that be a reason why its not reading it? maybe i should try that. ill let you know what happens. once i get another ecu but for now im gonna see if i can get it to work with what i have i know it should work.

 

[jdmbozhko]

hey i tried a usdm p72 and still no cel. looks like im gonna have to take her to a mechanic...i dont really have a choice. but can someone still give me the wiring diagram for under the dash. thanks.

 

[jdmjim]

dont give up now! i got you diagram but it wont let me save it to send it to you. if u have access to a fax ill send it to you. pm me with a fax number. im looking at this though check the pgm-fi relay behind the left side of dash it controls the ecu and fuel pump.