obd1 conversion

[petermcnulty]

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.

[Tony]

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

[4G4D Store]

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??

[petermcnulty]

Originally Posted by 4G4D Store

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.

[CRXperiment]

Originally Posted by petermcnulty

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.

[petermcnulty]

Originally Posted by CRXperiment

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.

[CRXperiment]

Originally Posted by petermcnulty

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.

[petermcnulty]

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.

[2poor2tune]

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.

[4G4D Store]

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.

[4G4D Store]

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.

[petermcnulty]

Originally Posted by 4G4D Store

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

[2poor2tune]

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

[petermcnulty]

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?

[4G4D Store]

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.