I've recently swap an H23A Vtec (Bluetop) in my '98 Prelude with an OBDI P30 ECU and now I don't have any fire (and no gas comin from injectors). I've put some RDX injectors with the Fuel Rail from Rosko Racing and have a h22a4 dizzy. I know i have to put the JDM one but the Prelude have a ignition coil but not the bluetops, Do I just bypass it but not pluging it? Because I have a plastic spark wire thats broken and I would swap the h22 dizzy cap onto the H23 one and there is also not the same numbers of pins. the h22 has two connectors while the JDM has 1. Do I really need a OBD1 dizzy or not? I have a usdm harness with a conversion harness to OBD1. that crank sensor problem is still there though. I know I would have some wiring to do unless there's a way of bypassing it?

 

Just use the h22a4 dizzy and put the ignition coil on your h23a, its an easy process to do. Especially if you are using your obd2 engine harness that came with your prelude. Or you can use the jdm distributor that came on the engine and wire it up as follows on this website. http://www.importintelligence.com/hoprh22ustoj.html.
Also if you end up using the h22a4 distibutor you would need to put on the oil pump from your h22 and its crank sensor, that is what's causing your no start condition, the lack of a crank sensor. On the jdm h22s and h23s there sensor is in the distributor.

 

Just use all your 1998 harness, oil pump, dizzy, ckp sensors and you will be good to go. You cant mix and match jdm parts of one obd sereis with usdm parts of another, thats the PITA way to do ****. Go one way or the next but not combine the two.

 

I am using the h22a4 dizzy right now cause i mixed a bluetop block with a H22A head and the ignition coil is IN the H23A dizzy so I would have 2 ignition coils if i would put on the H23A... The crank sensor is in the dizzy also in the bluetops and if i use the h22a4 dizzy i actually have NO crank sensor... Kinna getting complicated...

 

Okay so make it easy on yourself and follow what Bouckaroo and I are advising you to do. Just throw on the h22a4 oil pump and crank sensor and problem is solved.

 

I already have the H22 oil pump installed but where exactly do i put the crank sensor?

 

The crank sensor goes onto the oil pump there are 4 holes that it mounts onto. Here you go step by step of oil pump replacement and how the sensor goes on. You only need to look at the sensor and I hope to god you used your h22a4 lower timing belt sprocket and balance belt sprocket.
http://www.extremeprelude.com/oilpump.html

 

Isnt a way faster and easier? Block is already set up in engine bay ! Only problem is that i dont have any fire ! and btw i removed balancer shafts so... Can't i just changer pins around with a JDM dizzy or some ****?

 

What obd ecu

 

Yannx13 I have already posted a URL on how to wire in your jdm distributor using your a4 engine harness go read it and do it, and your car should run. Here it is again: http://www.importintelligence.com/hoprh22ustoj.html.

 

P30 OBD1