is it possible to swap the 3 stage into my civic vx and get it to work by doing any of these:
buy cali p07 ecu and tune it adding vtec for wild cam
but obd1-obd2 jumper and source a p2j manual ecu
use my stock vx ecu and a secondary fuel management system to control the second vtec solenoid and fuel map.

also, if none of that is in any way feasable. i can just swap a d15b obd1 normal vtec into my car and run a p28 ecu and the d15's normal o2 sensor correct?

 

up

 

3 stage vtec? That's Probably why nobody is responding.
Edit: small gains, lot of work, ecu issues=bad reviews on setup

 

The swap goes flawless if you use the correct ECU. Every time I've seen people do otherwise, they never, I REPEAT NEVER!, get it running correctly.
Don't know how you haven't found that out in over a month to research.

 

the headach of it all was my thought originally, however since i have the civic vx already, i could simply swap in the long block and put a 92-95 non vtec dizy on it and my same intake and just go right? if i had to change the intake i could use my injectors and the d15b7 orings and had read that i can use a vafc to control the second vtec. i think this would run essentially like having a d15z1 in the car for lean burn and 16 valve operation. i just dunno if the vafc could mess with the fuel and timing as i'd need for the wild cam.

 

about 5 years ago i used a p28 on a d15b with no issues.

 

A 3 stage VTEC? Doubtful. If you did how about you explain how you managed that when no one else has been able to.

 

yea, i saw that too... i think the only way to run the 3stage on a p28 would be to chip it and basically just tune lean on fuel till 1/2 throttle or something and somehow put a second vtec switch and tune for that as well.... nearly impossible.....

 

you are right, i believe the p2j ecu is probably the only way... is that one chipeable and tuneable?

 

Have one of these on the shelf and gave lots of thought.
VTEC-E ecu is not crackable, can't chip it to get a good rev limit, it could be used to run the lean burn and basic 4-valve function but wild cam won't work and at 5500? it's going to hit rev limiter. Local tuner thought he might be able to do it using a chipped GSR ecu and using the intake butterfly controls/tuning to be able to run the mid-cam but never tried it.

 

well. i did read, and this makes some sense, that you can tune your own fuel maps on a p28 for like 1/2 wot to be leaner up to a certain rpm etc etc. then how could one add the second vtec?

also the cali vx ecu is chipable, but does not have lean burn so essentially bleeeehhh

 

Just get the right ECU with your 3-stage VTEC swap and it's problem solved, no? Why make things more complicated than they need to be? Chipping other ECUs and what not. Unless you're in Calif where they're ***** about emissions. Then you're SOL.

 

The lean burn feature is nothing special, it just leans out the air fuel ratio to 18-22:1 based on map reading and throttle position, but needs a signal for the vtec-e solenoid that goes with it. You just need the ability in your ecu/tuning program to be able to have 2 maps with 2 solenoid controls integrated that you can tune.
Adding a knock sensor will really let you push the lean burn to it's limits as well.

 

Just get the proper ECU and stop trying to work around it with basemaps and EMS'. It may not be anything special but it's amazing how no one ever gets it to work right by doing everything BUT running the correct ECU.

 

except that no one can find a manual d15b ecu.....

 

And if I find one what will you say? See the problem isn't that they cannot be found. It's that no one wants to pay to get one because they are not plentiful and a little expensive. But by the time they try all these workarounds and hacks they put in more money then they would have just buying the damn ECU.

I'm looking at one right now on Ebay.

 

I see three p2j's on eBay at reasonable prices

 

they are all the auto ecus. those only work with the cvt transmissions....

 

^^^ Incorrect.
There are manual versions out there, but most were CVT automatics.
Watch the last digits to make sure you get the right one.
P2J-XXX
There is some info put up where someone did this swap and what ECU #'s to get(manual). Google it.

 

You're slow you blow. I was looking at a manual ECU. You obviously didn't make a move on it when I posted.

 

hahah, i am at work, didnt have the ability to camp on ebay at this particular time. i know the manual ones exist. my point was p2j is not simply the right ecu, has to be the correct rest of the code. do you know how much it went for?

 

My friend and I had his 1997 Civic Lx running flawlessly with a D16y8 obd2a ecu and an apex'i vtec controller. We had the 12v-16v solenoid wired to the controller and the high cam solenoid wired to the ecu.

 

So, hack job.
But seriously, if you've done it, post up EXACTLY how you did it.

 

Since the OP mentioned a California ECU in his OP, no, you aren't going to get it to work correctly and pass BAR and emissions.

 

also, lets say i have the ecua ad engine, and get an obd1 to obd2a jumper harness for the ecu, do i then run wires for the knock sensors and various other things in the engine bay? do i need to wire to my cluster or anything like that? i know rywire makes almost every jumper harness known to man