H2B-EK4

hi

im looking to do a h2b into an ek4 civic 1996.

The engine i will be using is a h22a7 from an accord euro r. The car is an civic vti 1.6 dohc vtec b16a2 1996 EK4 hatch. It is obd2a, the h22a7 is obd2b.

im looking to use a evolution industries h2b kit. I have an complete accord type r/ euro r donor car. The engine is still in the car but running rough, it is misfiring and engine is shaking, there is low comprssion in cylinder 4 125psi, so going to get it running right before pulling it out of the car.

Could anyone advise me on any common problems that i may run into. The wiring im thinking of suning the exsiting civic obd2a engine loom on the h22 block and running obd2a-0bd2b converter harness with the standard atr ecu or a obd2a-obd1 hraness with a chipped p28 with h22a7 map.

the dizzy on the h22a7 has on one connector, h22 has egr valve, also ive heard the standard intake manifold on the h22a7 wont work for some reason,

any help would be much apprecated, i have searched and found some usefull info but need some opinions or help from someone with experience/knowledge

thanks

H2B-EK4

if this is in the wrong section please let me know were to post it, thanks

H2B-EK4

bump

djnikko

bump to help a fellow H22'er

92eg_h22

I have a full JDM OBD2 engine harness from the h23vtec that came outta the siR wagon...if its any use to you

bump

raidacaipo

ask us a specific question. Ill be happy to help. I have a 97 honda civic hatchback cx with an H2b swap.

H2B-EK4

ok my question is my civic 1996 hatch is obd2a wiring. The engine which im usiing is a h22a7 which is obd2b. now what engine loom do i need to use on the engine the obd2a from the old engine or the obd2b from the h22.

thanks

MassScene

You MUST use the 1996 Civic OBD2a Harness...And Re-Work it to work with the H22..You can cut the already Ready Alternator wires from your H22a7 cut it from behind the block and splice it onto the civic harness ...You will need to change the oil temp Wire as well to work with the H22...cut + splice from the H22 harness as well.... And there is ABSOLUTELY NO NEED TO TAKE OFF THE EURO-R MANIFOLD...THAT MANIFOLD IS GREAT...YOUD BE A FOOL TO EVEN TRY AND PUT A STOCK MANIFOLD ON !

raidacaipo

x2!

No matter what engine you swap into your car, its most likely that the best wire harness to use is your original engine harness that came out of your car.. maybe some modifications but you should be using the same engine harness and not the one off the donor engine.. the one off the donor engine is usually used for scrap parts..

The only thing you need to worry about when doing a obd2 to obd1 conversion is the injector plugs, the distributor plugs, and the ecu.. other things may include oil pressure switch, extension of the alternator wires, and o2 sensors..

raidacaipo

Also heres what you need to do to make it easy as wiring goes:
1. Use original engine wire harness off of the civic and use the h22a7 engine harness as scrap parts and plugs.
2. Find a obd1 ecu if you plan on tuning. Besides its the easiest way to get pass other unnecessary wiring of emissions etc..
3. Modifications to your engine harness are:
a. Extend the alternator wires by cutting off the alternator wires off the h22a7 engine harness.
b. Change the oil pressure switch plug and use the one from the h22a7 engine harness.
c. Extend a couple of wires such as the fan switch, and o2 sensors.
d. Get a conversion harness if you plan on going obd1 and your going to need a obd1 ecu

H2B-EK4

cheers for that im the engine loom is obd2a from the car and the engine is obd2b. Im using the h22a7 exhaust manifold,

H2B-EK4

will the h22a7 intake manifold work as ive heard it wont conect up using the civic wiring

raidacaipo

who told you that? dude I would totally keep that intake manifold. All you have to do is wire up the IAT and IACV on that manifold. Any engine wiring will work as long as your willing to extend some wires and change some plugs. its really easy

H2B-EK4

when i asked some tunning shops in the uk they told me you cant use the stock h22a7 intake and will have to get a h22a8 one, thanks for the advice on the wiring. The engine currently is low on compression in cylinder 4 so need to get that stripped down to find out whats the probelm, here the link to my thread if you could help please

https://honda-tech.com/forums/tech-misc-15/honda-accord-euro-r-h22a7-engine-problem-2596583/

thanks

raidacaipo

why cant they use it? is it fitment issues? or is it wiring issues? either way you can use the h22a7 intake manifold. I dont know what the shop is talking about..

92eg_h22

Keep your Intake mani....you have the Euro R...no other stock IM will compare.

raidacaipo

sell the manifold to me!! Ill send you my stock manifold with some money on top :]

H2B-EK4

i will keep my intake manifold, im trying to get the engine sorted first before i take it out of the accord euro r and put it nto the civic, ita not running right shaking and mis firing.

92eg_h22

check the timing first.

H2B-EK4

i had the head taken off today and have uploaded some pics, ive been told by the mecanic the exhaust valve in cylinder 4 is not seating properly which could be causing the low compression and shaking, is it better to have all 16 valves replaced and also new piston rings put in as the heads off.







Thanks

H2B-EK4

bump

H2B-EK4

hi its been a while since i last posted, ive got a replacement engine which runs fine.

now im a bit stuck on wiring still,

the car is a civic ek4 obd2a, the engine is a obd2b h22a7 - does anyone have a guide/link/advise to modify the car obd2a engien loom to work on the h22a7 as the previous engine in the civic was a b16a2 it had no egr valve and some connections are diffrent.

could anyone help please

thanks

H2B-EK4

BUMP

H2B-EK4

BUMP anyone got a wiring diagram im gonna use the obd2a civic engine harness on the h22a7, that harnees was for a b16a2 1.6 dohc vtec and it has no plugs for egr and dizyy plugs are diffrent no crank position sensor plug either

anyone got any wiring diagram or infomation please

thanks

teefunk01

goodluck with the build