obd1 conversion

Alright, I know I need:

conversion harness
dizzy
ecu
o2 sensor

But my question is what are my options for ECU's. I drive an 88 CRX DX with the stock d15b2 engine.

I would stick to OBD0 for that motor. Step up to OBD1 if/when you swap motors to a OBD1 motor.

Your obd0 dpfi setup only has 2 injectors. The problem you will run into is that none of the obd1 honda civic ecu's are built to run only 2 injectors. If you do want obd1, you'd have to do a minimum upgrade to the mpfi conversion as well as the upgrade to obd1. Just for curiosity sakes - why are you wanting to upgrade to obd1??

Your obd0 dpfi setup only has 2 injectors. The problem you will run into is that none of the obd1 honda civic ecu's are built to run only 2 injectors. If you do want obd1, you'd have to do a minimum upgrade to the mpfi conversion as well as the upgrade to obd1. Just for curiosity sakes - why are you wanting to upgrade to obd1??

well the plan was to turbo and to use either crome or s300 for tuning, which won't work with obd0. I did plan on going MPFI anyways but i still wouldn't know which ecu to use. I may just consider a zc swap.

well the plan was to turbo and to use either crome or s300 for tuning, which won't work with obd0. I did plan on going MPFI anyways but i still wouldn't know which ecu to use. I may just consider a zc swap.

Wait till you at least do the mpfi or upgrade to another motor before converting to obd-1. You can run an obd-0 turbo setup and get your ecu chipped but obd-1 is as you know more tuner friendly. First ditch the dpfi.

Wait till you at least do the mpfi or upgrade to another motor before converting to obd-1. You can run an obd-0 turbo setup and get your ecu chipped but obd-1 is as you know more tuner friendly. First ditch the dpfi.

yea i was going to do the MPFI conversion reguardless. is there any other practical ways to tune obd0 besides turbo edit (which as far as i know doesn't exist anymore?) Also i don't think i can chip my ecu.I read something about not being able to chip 88 and 89 pm5's. I just want to get a simple 6-8psi turbo build started asap.

yea i was going to do the MPFI conversion reguardless. is there any other practical ways to tune obd0 besides turbo edit (which as far as i know doesn't exist anymore?) Also i don't think i can chip my ecu.I read something about not being able to chip 88 and 89 pm5's. I just want to get a simple 6-8psi turbo build started asap.

Come on man, you can't run a pm5 with a turbo set up. Pm5 is a dpfi ecu and is garbage. If you do an mpfi swap and maybe throw in an A6, get yourself a 90-91 pm6 ecu, those are chipable. 88-89 ecus are not.

i was thinking, rather then do a swap, would it be better to swap to MPFI and then get a megasquirt? Eliminate my stock ECU altogether. Anyone else done it? I looked but it doesn't seem to be popular.

you could do that but you would still need the ecu for spark and such. senors and all that but it is prett much worthless to do a obd-1 swap on that motor. i would just do like it was said before. grab an a6 and boost it or maybe a dohc zc.

You can run OBD0 and turboedit with a chipped ecu and do the same things as you can with crome without having to convert to obd1 and use a pm6 ecu. That's what I'm doing.

You can run OBD0 and turboedit with a chipped ecu and do the same things as you can with crome without having to convert to obd1 and use a pm6 ecu. That's what I'm doing.

You can run OBD0 and turboedit with a chipped ecu and do the same things as you can with crome without having to convert to obd1 and use a pm6 ecu. That's what I'm doing.


can I use a pm6 with my dx (d15) engine after converting to MPFI?

i found the turboedit download, im gonna put around with how it works and such

yes after converting to mpfi you will need the pm6 to run your motor. but you should get a 90-91 so you can chip it. pretty simple. oh and the pm6 is the stock si ecu if you dident kow. fyi

Ive been reading up on turboedit for a couple hours now. i think im gonna buy a pm6 chipped from xenocron. Can i run it chipped before I tune with turboedit? I just figure if they can chip it for me for only like 20$ more, why not just take care of it now. Or if not I would assume I could just burn a chip for running stock (unless im not understanding this right). Until I piece together the rest of my turbo kit.

also, anyone know of any reasonably priced quality chip burners?

If you want to bypass the chip burner, get the moates ostrich - it's a obd0/obd1 chip emulator. It's real time programmable instead of reburning chips all the time. I just bought mine for $175 - can't wait to get it in and play with it.

If you want to bypass the chip burner, get the moates ostrich - it's a obd0/obd1 chip emulator. It's real time programmable instead of reburning chips all the time. I just bought mine for $175 - can't wait to get it in and play with it.


that actually seems like the way to go, but my question, Don't you need to keep it in your car for it to work. Or does it just edit the chip over and over again. If you took it out of your car would everything you did with it go away?

The emulator stays in your car, you just plug a laptop into it via usb and reprogram it when needed, then unplug it and go - you can also program it while the motor is running/driving.