[91crxdxis2slow]

So i have a 91 crx dx that did have a d15b2 in it but i pulled blown motor and installed a d16z6 block with intake manifold from a 92-95 ex. i have full engine harness and p28 from the ex. I also have dpfi to obd1 ecu jumper harness and there is a few plugs and two extra wires running on this that i have no clue what they go to. So i need to know what else is needed to get this car running besides the obd0 mpfi swap? I definetly want to run 0bd1 so what do i need and what do i need to do? This is my first swap and have only seen 1 mpfi swap done on my previous dx. Someone please give me some direction! Any help is appreciated thank you.

 

[ForeverDeath]

the 2 wires are ether the injectors 2 and 4(i belive), crank pos sensor wires if its not a vtec conv harness.

 

[BeerDrinkin]

i dont know much about this so look here

 

[rider5000]

So your going obd0 dpfi to obd1 mpfi. You have the engine harness, ecu, and intake mani. Hopefully you have the dizzy for the z6. Swap the harness, plug the sensors and injectors in, including dizzy and ecu. I know there are a few parts your going to need like a hose or somthing.

 

[SohcEF]

i know im a noob and all.. but if he took the ex wire harness out from the eg, should'nt it be plug and play for the z6? And is it possible to even put an eg wire harness inside an crx?

 

[rider5000]

Only one way to find out.

 

[Pata]

All of you all are noobs. How is the D16z6 engine harness going to plug on his car? A obd1 engine doesn't plug into a ef/ed lol.

He has to hack his obd0 engine harness and convert it with some obd1 plugs to work.

 

[91crxdxis2slow]

No you cant just "plug" an obd1 harness into an ef? much less a dx that only has two injectors. You have to the mpfi swap first...at least that is what i did.

 

[BeerDrinkin]

MPFI Swap

DX,STD (DPFI) -> Si,HX (MPFI) wiring

Some write ups on how to mpfi swap.

 

[91crxdxis2slow]

so i did the mpfi swap got an obd0 to obd1 jumper harness from rywire. Also got an obd1 vtec distributor (reads td42u). Put in an 4 wire o2 sensor. using a p28 ecu from an automatic but my car is a 5 speed. Tried cranking just turns over. Sounds kind of odd. My cel just stays on and it sounds like my fuel pump never stops priming? I reset timing and it is correct . Took a plug and spark plug out of head and grounded it to chassis...no spark? New plugs and they were covered in gas. I believe my ecu is bad ive checked my wiring at least 20 times. It is correct! Any help/advice would be great.

 

[91crxdxis2slow]

oh yeah and i ranmy 12v for the ob1 injectors to and fuse under the dash. Idk if this is right but everyone kept saying run it to a 12v source but never verified if it should be a constant so i made it so it only comes on when ignition is on (III). is this correct?

 

[BeerDrinkin]

Does the auto computer need to have something jumped to think it is in P or N. I can't remember.

 

[90prjktED3sdn]

it needs to be converted to use in a manual,
http://www.d-series.org/forums/diy-forum/147271-converting-p28-auto-ecu-p28-manual.html

read it use it. and pata is correct you have to convert your dx harness to mpfi then convert to obd1 .

 

[91crxdxis2slow]

So it wouldnt run at all with a p28 automatic? I've tried looking this up and only have found that converting the ecu is needed if socketing.

 

[rider5000]

You can use it but you need to convert it to manual first.

 

[91crxdxis2slow]

Converted the p28 to manual and ran my 12v source for my injectors to yel/black on the ecu and it crunk right up! awesome. thanks for the help.

 

[79hilux90crx]

Wait!!!!
What the hell is a DRX I need pictures please?????

 

[SohcEF]

^^ lol i was just about ask the same.

 

[sleepingciv]

so much herpa derpa up in this thread lol.

 

[91crxdxis2slow]

I didn't even notice I had put drx. lol.