R.GroomsH22

Have a obd2a h22a4 in my obd2a 97 honda civic if I run a chipped p28 on a jumper in my car will I have to change to an obd1 dizzy. Obd2 have crank sensors in the block and I think from research obd1 uses the dizzy for the crank sensor. So question is can I use my obd2 dizzy or do I have to get dizzy jumper harness and run an obd1? Ive done research just can not find everything

snobordboy

If you are simply using an obd2 -> obd1 jumper at the ecu, you should leave it with the obd2 dizzy, as the jumper harness does the job of converting for you. At least that is how I understand it.

R.GroomsH22

Well just found out that dude had already put a obd1 dizzy on it so what should I do just get a dizzy harness now, and what about stock obd1 p13 ecu's do they need resistor box for injectors?

snobordboy

Yup obd1 P13 uses a resistor box, and the corresponding injectors. If using later injectors, no need for the resistor box.

R.GroomsH22

So if they are 99 injectors and im running a obd1 ecu I wont need resistor box just to be clear

First.EG

Later h22's run smaller injectors something like 290cc. Obd1 p13 is tuned for 345cc injectors. Your car may not run right.

R.GroomsH22

Okay well im guessing im just going to get a chipped p28 with h22 map and just go ahead get bigger injectors and resistor box