obd0 to obd1
Thread Starter
Honda-Tech Member
Joined: Jun 2015
Posts: 5
Likes: 0
obd0 to obd1
hi ef fam im looking to go obd0 to obd1 on my stock d15b2 non v not sure of all the parts i need
i know i will need
1.manifold
2.jumper harness
3.ecu
but not sure what else any help please
i know i will need
1.manifold
2.jumper harness
3.ecu
but not sure what else any help please
Re: obd0 to obd1
obd1 dizzy needs to be on the list
injectors, basically the intake mani needs to be complete
a dpfi to mpfi needs to be completed first before you can even go to the next step
it is possible to do both in a jumper harness but not necessary. it is a easy to do process on your own
injectors, basically the intake mani needs to be complete
a dpfi to mpfi needs to be completed first before you can even go to the next step
it is possible to do both in a jumper harness but not necessary. it is a easy to do process on your own
Keyboard Humorist
Joined: May 2002
Posts: 9,814
Likes: 11
From: Granada Hills, Ca, USA
Re: obd0 to obd1
In some cases you won't need a resistor box.
A resistor box is ONLY used for low impedance injectors.
If you get high impedance injectors then you don't need a resistor box.
Injectors are NOT OBD0, OBD1, or whatever so you can run either type.
To go DPFI to MPFI you don't need any jumper harness.
You simply add a few wires and swap a couple wires.
In essence you are adding 2 injectors, changing the ECU and distributor so the two additional injectors can operate, and then a few changes to wires so it all plays nice.
After you are properly done with DPFI to MPFI you then have what is equivalent to a stock MPFI car.
OBD1 is MPFI so you can't even do any OBD1 without first having converted away from DPFI.
For OBD1, you use a jumper harness reroute all the OBD0 wires to the correct locations on the OBD1 ECU, add an OBD1 distributor, add a 4 wire O2 sensor and viola! - OBD1.
A resistor box is ONLY used for low impedance injectors.
If you get high impedance injectors then you don't need a resistor box.
Injectors are NOT OBD0, OBD1, or whatever so you can run either type.
To go DPFI to MPFI you don't need any jumper harness.
You simply add a few wires and swap a couple wires.
In essence you are adding 2 injectors, changing the ECU and distributor so the two additional injectors can operate, and then a few changes to wires so it all plays nice.
After you are properly done with DPFI to MPFI you then have what is equivalent to a stock MPFI car.
OBD1 is MPFI so you can't even do any OBD1 without first having converted away from DPFI.
For OBD1, you use a jumper harness reroute all the OBD0 wires to the correct locations on the OBD1 ECU, add an OBD1 distributor, add a 4 wire O2 sensor and viola! - OBD1.
Keyboard Humorist
Joined: May 2002
Posts: 9,814
Likes: 11
From: Granada Hills, Ca, USA
Re: obd0 to obd1
Jumper harness is for converting OBD0 to OBD1.
So yes, it is the option so you don't have to cut and splice your ECU plugs for OBD1 plugs.
Jumper harness is NOT going to convert from DPFI to MPFI though.
So you still need to do cutting and splicing for that.
So yes, it is the option so you don't have to cut and splice your ECU plugs for OBD1 plugs.
Jumper harness is NOT going to convert from DPFI to MPFI though.
So you still need to do cutting and splicing for that.
Re: obd0 to obd1
http://www.ebay.com/itm/88-91-HONDA-CIVIC-CRX-DPFI-TO-MPFI-ZC-DOHC-OBD0-ENGINE-HARNESS-CONVERSION-/191599268154?hash=item2c9c34d13a&vxp=mtr
so if your to lazy to do a simple wiring exercise, even with this kit, nearly any jumper harness wiring will be required
then you need the jumper, obd1 dizzy, o2, ecu, intake manifold
so if your to lazy to do a simple wiring exercise, even with this kit, nearly any jumper harness wiring will be required
then you need the jumper, obd1 dizzy, o2, ecu, intake manifold
Thread
Thread Starter
Forum
Replies
Last Post
lilsicsoul
Honda CRX / EF Civic (1988 - 1991)
5
Mar 1, 2009 04:23 AM