d15b vtec head on a d16z6 block.

8thchild · Apr 5, 2013

Last year I purchased a 96 civic hb OBD2. well I am a noob and did not know to much about honda engines so I let time pass while there was so many engine codes coming from the ecu, I was told it was because the vtec solenoid was not connected. A week ago I started cleaning the tb,manifold etc and notice the car ran better. So I told my self what the hell lets look at a few forums and see what it would take to run vtec solenoid lines to the ecu. And this is what slapped me in the face.

Engine: jdm D15b vtec head on a D16z6 vtec block, Head is stamped P08-2 OBD1.
d16z6 dizzy with some crazy wire conversion that is not done right OBD1.
obd2 wire harness I do not know what car it came from.
OBD2 ECU P2E.
Y7 intake manifold the one that looks like a spider up side down.
The valve cover gasket are stripped should be fix tomorrow with Heli coil.
The exhaust manifold has that crazy looking catalytic converter on the top with the 2 o2 sensors and its a bit ruffed up.
Also has a cut off switch, Witch I have no use for.

I have my work cut out, so how do I get the vtec to work and what parts do I need to buy to make it work.
What ecu do I need to run with said wire harness I am not sure this is the solenoid for this engine.

Please help this noob lol.

Z6Ekhatch · Apr 5, 2013

you will need a P2P (d16y8 ) ECU if youre staying obd2

kingyeddi · Apr 5, 2013

8thchild · Apr 5, 2013

Lol nice one. I am stressing the s$$t out of the craziness. So why would some one do a opposite of a mini me swap what would be the gains of the swap.

8thchild · Apr 5, 2013

I would like to go obd1. Engine is obd1 so Is the dizzy. I was told I need the d16z6 harness and a p28 ecu. Is this correct.

Black_Hand · Apr 5, 2013

You need a dizzy and ecu jumper harness. You will jave to move the cyl position sensor wires since obd2 is on the crank and obd1 is in the distributor. You can't run the y7 intake on a vtec head because it will run into the vtec solenoid. And you might have to rewire the iacv if your plug doesn't match up.

8thchild · Apr 5, 2013

Why would I need cyl position sensor if the engine and the dizzy are obd1 and I want to run a y8 manifold not y7, and I do not need to worry about the iacv because I will get a auto y8 and use my tb use the y8 roto and y7 fuel rail and injectors. Pls correct me if I am wrong.

dj211855 · Apr 5, 2013

1. Your P2E ecu will look for the cps sensor.
2. Yes, you will need to worry about IACV when you swap a different manifold in it and when you convert to obd1. Obd1 p28 ecu will look for two wires IACV. Currently you are probably using the y7 harness.

Note: You can use the y8 ecu for it- but here is the problem. It will look for the cps and two wire IACV sensor. Y8 will also look for the 240cc injectors compare to 190cc P2E.

8thchild · Apr 5, 2013

Pata · Apr 6, 2013

Whoever told you that you need a z6 engine harness shoot be ran over with my car...

If your car runs good, you don't need vtec. Leave your engine the way it is.

Unless, you have $400 to make it all wor the way its suppose to.

Ah yes, post regular pictures here too. No gaybook links please. I can not view...

8thchild · Apr 6, 2013

Will post the pics from now on. Gay book so funny.

Pata said:
Whoever told you that you need a z6 engine harness shoot be ran over with my car...

If your car runs good, you don't need vtec. Leave your engine the way it is.

Unless, you have $400 to make it all wor the way its suppose to.

I will talk to a friend and get the codes pulled. But I would like to get vtec going. It's what I am used to and would like to get it going. What would I need to get to make it work sir. Your threads right ups are the best I have seen so you know your stuff.

Pata · Apr 6, 2013

there's 2 way to do this. First you need to get either a OBD2a P2P ecu or a OBD1 P28 ecu.

But before you get either of those 2 ecu's, you need to get a D16y8 intake manifold off a 5spd. You can also use a intake manifold off a D16z6. Just make sure the IACV is in good condition otherwise your car will idle like shit.

So all this can be as smooth as possible, find yourself a good D16y8 throttle body. Again, making sure you find one with a good MAP sensor and TPS sensor.

I would also find a good working D16y7 or D16y8 distributor so your engine harness doesn't look to crazy with that obd1 distributor you have right now. Only problem is the OBD2 distributor won't bolt up to your head because the bolt pattern doesn't match. People bolt them on somehow anyways to make it work.

Fuel injectors. Get fuel injectors off a D16y8. I hate seeing stock obd1 fuel injectors on a OBD2 car with the wiring all hacked up. It's just plain retarded. But then again, to each their own.

A nice cheap ebay header will work just fine for you so you can get rid of that y7 exhaust manifold. But you will NEED to get either a Cat. convertor after the header or a aftermarket test pipe.

Now, after all that is bought, you have to figure out what ecu you want to go with. This will be a easy choice. If you go with the Stock OBD2a p2p ecu, you will get a bunch of codes and your check engine light will come on. Mainly the secondary o2 sensor and the famous knock sensor. Or you can go with a OBD1 p28 ecu but you will have to get a OBD2a to OBD1 ecu jumper harness. A cheap one from ebay will work just fine. And all you have to do is wire vtec and your done. No knock sensor or nothing of those things..

Let me know if you fully understand any of this. I can help you out more. But post pictures.

8thchild · Apr 6, 2013

Ok thank you so much bro its hard to find good help in this part of florida lol.
I hope I meet a few dseries members from florida here in the forum. But again thanks and will post the pics of the car soon. I have a tps and upper 02 senser code lol nothing else. I fixed all leaks so car is running good till I get all the parts I need. Its going to be hard finding a p28 around here I may have to order a virgin online. now you said get a cheap header form ebay. wich one will I order the one with 2 o2 sensors or one. and d15b correct

8thchild · Apr 6, 2013

I have another question can I use my distributor insides from my obd1 on the y8 incase I find a case for it. and this dizzy is rewired it might be obd2 now.

8thchild · Apr 7, 2013

I need to rewire the dizzy wires sense its a mess. I will have fun with that. or can I just buy one of these OBD1 to OBD2 10-pin Distributor Jumper Adaptor Harness

8thchild · Apr 7, 2013

This is what the car has.

Y7 Manifold
D16z6 Distributor OBD1 and I think it is wired for OBD2
Y7 Injector
Y7 Exhaust Manifold
P2E ECU

Parts I need

D16y8 Manifold
D16y7/y8 Distributor
D16y8 Fuel Injectors
Cheap Ebay Header with 1 o2 Sensor
P28 ECU
OBD2A to OBD1 ECU jumper

About $350 Bucks some parts from the junkyard.

Bizzar · Apr 7, 2013

I see no mention of a cam gear. Do you know if this D15B head, Z6 block combo came with a y8 cam gear for proper mechanical timing? If you are unsure, you might want to throw that on the list. Yes it will run and run just fine but it can and will run much better with the right gear on there.

8thchild · Apr 7, 2013

Good point is their a way to tell what cam gear is on that head. so I need a d16z6 cam gear.

8thchild · Apr 7, 2013

Question how do I figure out if my dizzy is wired obd2 after all looking at the pic you can see it has been tampered with. and its a obd1 on a obd2 wire harness and no codes show up for the dizzy just o2 sensor and tps. and do I really have to get y8 injectors to lol.
the y7 injectors are running smoth as silk lol.

royboy · Apr 7, 2013

Have you recently moved your pictures inside your PB account? Can't view any of em.

8thchild · Apr 7, 2013

OMG is their a simple way to post the pics I hate fakebook and photobucket.
sorry will do what I can.

8thchild · Apr 7, 2013

if I can use this OBD1 to OBD2 10-pin Distributor Jumper Adaptor Harness Honda on this engine i might make one does not look as hard lol. Just seen a harness at the junk yard the other day was about to cut it and bring it home but changed my mind.

so let me get this straight I would need the 2 male plugs from the harness and the female from the dizzy bam. I can get the color diagram online.

ok so I finally figured out my dizzy issue lol. the wire harness is a y7 witch should have a 10 pin dizzy plug and the other 2 wire plug instead it has a 8 pin plug male going into the dizzy.

can some one pls explain why it is set up this way. I need to know because to do a obd1 to obd2 jumper harness it has a 10 pin female plug going into the wire harness and then a 8 pin plug going into the dizzy with the 2 wire plug pls I need help here.

royboy · Apr 8, 2013

Please post the link to your profile, we might be able to navigate in it and find those pics

And for your question above (post #20) a Y8 cam gear should be stamped P2E

8thchild · Apr 8, 2013

Photo and image hosting, free photo galleries, photo editing

http://s1266.photobucket.com/user/erickmpena/activity

here you go, let me know if that worked.

Bizzar · Apr 8, 2013

8thchild · Apr 8, 2013

the first linked changed after I hit save try the 2nd one.

firsteg · Apr 8, 2013

both don't work

copy and past the link to the photo. that way it shows up as a big photo where you post the link.

i believe there is a how to on it in the FAQ in the noobie section

8thchild · Apr 8, 2013

Do you mean the link of the pic from photobucket the pic on my pc.

Pata · Apr 8, 2013

your thread is failing boy. Please save it! It's sinking!

8thchild · Apr 8, 2013

Its the pics bro lol

Did the pics work, they work for me.

Pata · Apr 8, 2013

what pics?

8thchild · Apr 8, 2013

car and engine on page one I fixed them

8thchild · Apr 8, 2013

Look guys I just want t know the best way to have vtec connected on the engine. almost all my question has been answered but one. was my dizzy converted to obd2 and if so can I just keep it with all other parts pata told me to get will vtec run. he stated to get a y8 or y7 dizzy witch is obd2 and get rid of mine witch is obd1 but if it is converted can I just stay with it. I may need to redo the wires sense a hack job was done. if the pics are working you can notice the hack job going from the harness to the dizzy. also can I buy or make a obd1 to obd2 dizzy jumper harness and make it work.

http://i1266.photobucket.com/albums/...48676481_n.jpg

8thchild · Apr 9, 2013

My friend gave me a tps from a accord hope it works for my civic. It is idle up and down. No bueno

8thchild · Apr 9, 2013

And I got a conformation today that my obd1 dizzy was wired for obd2 so I do of have to buy a dizzy, woot save me some dinero.

8thchild · Apr 13, 2013

Will this cheap header and high flow cat work. and will I get a cell with the high flow cat.

92 95 Honda Civic EG EJ Stainless Steel Header High Flow Cat Single Cam SOHC | eBay

d15b vtec head on a d16z6 block.

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