hi, i have a 96 accord lx with a few simple bolt on mods (full exhaust, intake, 10lb flywheel). my next experiment is going to be installing a dual plenum IM off of a prelude. i understand that the butterfly valves are computer controlled...but i have a stock accord computer. im trying to figure out how to control the butterflies. i dont want to remove them and hoping not to use a manual swith as that would be inaccurate and annoying. any ideas on how i might pull this off? thanks

 

You would have to replace your ECU with an F22a6 ECU, or one that has been chipped to be able to utilize the IAB valves.

 

I wouldn't run the H23A1 Intake Mani. It makes the engine bay look messy with all the lines and wires running around.

I would def. do the F23A1 Intake Mani. It'll improve both your low and upper end; since, the F23A IM has bigger runners. I've ran the F23A IM on my Bisi Level 2 VTEC cammed F22B1 and it pulls. I didn't feel how much power it increase; cause, I had the Bisi cam and IM installed at the same time, so its hard to say.

You can also hook the butterflies up by vacuum and it doesn't need to be electronically controlled by the ECU. When I first swapped in my H22, I had the IABs hooked up by vacuum.

 

AEM EMS

problem solved lol

In actuality they are correct in saying that you need a tuneable EMS setup, so theoretically the AEM is one way to go, another way to go is simply to get a chipped ECU, depending upon if you want full control this may be the way to go!

If you need anything just shoot me an email!
Randy@Bisimoto.com

 

a6 ecu is ob1 only correct? who does ecu programming for something like IAB valves, i mean all i need is for my comp to ground out a pin at like 4k rpmish, i can take care of the rest

 

You will have to run a standalone or downconvert to OBDI.

No other way around it. There's much better ways to spend your time/money. I suggest looking at Randull's website there for some ideas. Then pick up a cheap P28, downconvert to OBDI and get it tuned.

 

Yup, OBD2 cars can't be tuned unless they convert to OBD1.

OP, you'll need a OBD1 distributor, extend crank sensor wires to distributor cause crank sensor is located in the dizzy itself on the OBD1, OBD2 to OBD1 jumper harness, P28 chipped ECU with F22B2 basemap & tuned.

Now I don't know if you'll need the OBD1 injector or not on these Accords as I haven't really look into this for the CD5s. Double check with ppl though.

 

Exactly, oddly enough we can get you a p28 with an s100 setup on it, that might be the most economical setup for you. Let me know though, our website is not 100% up so certain things, i.e. EMS setups, are still being loaded

red, just shoot me an email and I will help you out
randy@bisimoto.com

 

There are chipped ECU's available all over the place. HRtuning.com, Xenocron.com, Phearable.net & Moates.net just to name a few places. These people have not only been selling ECUs but developing hardware and software to aid in the tuning of Honda EMSs for a few years. They know a thing or too as well.

 

so do i need to change the injectors over for an ob1 swap or do i simply need to do the distributor swap and rewire the crank sensor?

 

You don't need to replace anything if all you are doing is running an OBD1 ECU. There are OBD2 to OBD1 ECU conversion harnesses out there tht don't require anything on the engine side be touched.

I ran a chipped OBD1 ECU with IAB support in my 96 F22B2 Accord (OBD2) No problems. Didn't need to change injectors or distributor.


Now if you are still looking to swap in an IAB manifold. I would go with the H23/F22A6 as they are closer to the same intake port design. However, Keep in mind that these manifolds use a different thermostat setup than your F22B2. IIRC You will need to run an H22/H23/F22A6 thermostat housing.

 

Correct, to my recollection AEM does a harness for this as well.

 

Are you sure? Doesn't the AEM EMS plug right into the Stock OBD2 harness.

It's just that I have never seen an AEM OBD2a to OBD1 ECU Conversion Harness is all.

Boomslang
Xenocron.com
Rywire.com