forgetthestreets

ok so i have a 91 crx si with the stock d16a6 in it
it overheated and blew the head gasket.
the head dident seem to be in the greatest shape
and there was coolent mixed in the oil everywhere
so i took the motor out rebuilt the bottom end to
clean it all up and decided to trash the head and go with a z6.
now here come the questions
i keep looking stuff up but only find genralized answers.
ok i bolted on the z6 head to the a6 block a couple hours
ago and now i need to know.
i heard about hooking up the vtec with one wire

well i think i'm going to do this until i can afford the other ECU
(couple weeks) but "how do i do this?"

also is there ANY way i can get the distributor off the stock a6
to work with the z6?
i heard that you can get it to "mount" but what about wiring
will it still work?

and i may have a couple more questions but i have to think about it and see what happens heres a few pics of where i started to where im at now thanks and anything will help answers or links

after the a6 head is off


z6 head with a6 intake mani


z6 sitting on top


head bolts down and header back on


it seems to sit alot higher than the stock head ??


stock dizzy doesent match at all



green = ? and grey = vtec wire

Redline130

What ecu will you be using? To use the D16A6 distributor on a Z6 head, you will need to cut the front mounting leg off of the dizzy, and enlarge the bolt hole on the top mounting hole. The green plug is the VTEC oil pressure sensor and the grey is the VTEC solenoid plug.

forgetthestreets

i will be using whatever the stock ecu is for a 89 crx si.
if i cut the tabs and everything to bolt the dizzy up right than i know i can get it to bolt on "but" will it still work wiring wise?
do you know exactly how to one wire the vtec or oil pressure or dizzy up to my stock ecu?
thats what i cant find out
thanks

JandMmotorsports

the si computer is non vtec and if you use the si dizzy the is no wiring changes

JUN.

just dont use vtec untill you get the propper ecu

forgetthestreets

so the dizzy is not a problem than? as long as i bolt it on it will work?
and than i can run the car on the stock ecu until i can get the p28?
just no vtec obviously

Rywire

just get obd1 ecu and dizzy and your golden

Redline130

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by droppedcrxsi &raquo;</TD></TR><TR><TD CLASS="quote">just get obd1 ecu and dizzy and your golden</TD></TR></TABLE>

And an OBD0 to OBD1 wire harness conversion.

JUN.

or a pr3/pw0 I saw 1 on ebay for 100

civicflow

Pertaining to this thread-can you chip the pm6 to run vtec? I am getting conflicting answers thru my searches.

forgetthestreets

ok i do know that all i need to do is buy the p28 ecu, z6 dizzy and obd0 to obd1 wire conversion harness. BUT what i am trying to ask is there ANY way i can get my car up and running without those. i have stock 89 si ecu and a6 dizzy. i found some write ups saying that the dizzy will work with some cutting and fixing the tabs. but is the wiring ok?
and is there a way i can "one wire" up the vtec? or should i just wait for the vtec til i get a p28 ecu?
but the big question is with the stock stuff i have can i get the car running?
i have no daily driver and need to get it running with no cash if possible
thanks

civicflow

you can run it. i just bought a 91 civici si with a d16z6 running on the a6 distributor and pm6. no vtec though. I would wait for vtec since the fuel wouldn't be right with the pm6. the distributor is flipped on its side with one leg cut off and another enlarged.

forgetthestreets

ok awsome could you possibly get me any pics of this stuff(dizzy, where the wired all go) so i can know im doing it all right thanks alot

civicflow

you don't need to change any wiring at the dizzy if your using your pm6.just need to cut off the one leg on the dizzy and enlarge a bolt hole. I will try to get pics up tomorrow.

sanimalp

you can run 1 wire vtec with 90-91 pm6 ecu's, but not 88-89 pm6 without a ton of modification. so either way you are going to need a new ecu to run vtec, unless you are a soldering ninja.

your car will run just fine with the a6 distributor and your current pm6 ecu, it just wont have vtec. if you want vtec, do it the right way and do the p28 ecu with z6 distributor, or buy a pre chipped 1 wire vtec 90-91 pm6. obd1 is far superior to obd0 at this point, so the best bang for your buck would be the p28 option.

fwiw:
it seems to me that the a6 distributor will work on the obd1 setup however.. i dont think you need a new z6 distributor. the z6 distributor has all the same sensors that the a6 one does, so as long as the conversion harness is done right, i dont think youll need a new distributor as long as you are confortable running on 2 posts instead of 3. i personnaly wouldnt be able to sleep at night running only 2 posts.. but.. somebody should vouch for this last paragraph for accuracy.

HondaPartsHero

no the A6 distributor won't work with the OBD1 ECU you are going to need a Z6 distributor

forgetthestreets

ok if i buy the wiring kit for the vtec solenoid and oil pressure switch off of the honda parts hero ebay store and buy the p28 ecu than the vtec is all figured out but than what do i need for the dizzy i'd need a z6 dizzy and what wiring would i need to buy? and i dont have $190 !! for a small wiring conversion thanks for all the help so far

forgetthestreets

when i put in the obd1 p28 ecu will the ecu harness clip right in? or am i gonna have to find a odb1 ecu harness with vtec to use it? and also for the dizzy can it be a y8 dizzy?
or any obd1 dizzy? or does it have to be a z6 vtec??
thanks trying to start ordering stuff and i dont want to waste money i dont have thanks again