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Hi all i got a 97 EJ9 which is SFI OBD2A
D14a4 i believeee.

in the middle of doing an engine conversion....

new engine is a JDM D15B

engine is in and what i can connect up is connected.

so the dizzy im not sure what too do on that something about cutting out 5 wires and adding 7 new ones? which ones exactly do you cut out and replace?

thee injectors are easyly done..

erm not sure about the inlet manifold it looks like ive got all connecters on.

i am a bit of a newbyy... but is it possible to use a OBD2b ECU (P9L)

tried lining up the D14 dizzy but it wont allign with the bolts so you cant boltt it on...

cheers for helpp much appreciatedd

welcome to our forum! Please introduce yourself to the right section
There are some ecu wizs here that can help you out.

Probably you need to keep D15B dizzy... is the P9L the ECU which came with the D15B? Now I am always confused a bit with that engine, is it normal 2-stage VTEC and not 3-stage? Incase of 2-stage lots of options exist.

hii sorry lol.
tbh im not sure i believe it is the 3 stage but not %100 as i got given the engine off a mate.

and no the P9L came off a OBD2B MB6 civic d15y8 i believe (vtec-e).

i think i might purchase obd2a to obd1 harness off ebay along with a P28

that should work right?

thanks for help

ok for a bit of an update..

using my D14 loom i have connected up what i can extending a few wires here and there.

had a few problems tht should have looked into like the altenator plug is different lol so got to change the altenator ( obd1 has 4? obd2a has 3.)

using the D14 dizzy to get a spark had it running but because how high the fronts sitting theres no fuel at the pump lol...

i am currently running it on the D14 ECU

has anyone got pin outs for a D15B dizzy (TD31) i think..

so i could possibly convert it to obd2a?

if not i would need a obd2a dizzy off say a D16y7 something like that..


cheers forr looking

Give us accurate codes about your engine, ecu that you want install and for the present one.
Elsewhere nobody can help you.

Given up on the D15b into my ej dont have the fund right now for it so D14 back in with new inlet manifold on only wanted to get rif of the downward induction anyway not botherd about vtec...

so the D15b is up for sale with a few other bits... just to clarrify i did get it runing but only on my D14 Dizzy which i couldnt get it to time up right as obviously it wont bolt up.. check the classifieldss

Sounds totally like the D16Z6 cam in there since you did not get the timing right, so normal 2-stage VTEC I assume. Hmmm... I will notify somebody of your D15B for sale then.