Hondaswap.com | Honda Technical & JDM styling Forums

Justin66 · 12-29-2008, 06:40 AM

Sorry to post another thread but i am a little confused with a certain OBD compatibility. In a nut shell i put an OBD1 dizzy on my b16a with an OBD0 PR3 ECU. After it was on the car wouldnt fire up. Turns out the injectors arnt firing. I got another working ECU in case mine was fried. Still no avail.

Does the ECU have to match the dizzy in order to work? Does a sensor not work with the ECU causing no injector signal?

There is a possibility that it was wired improperly since some of the colours did not match when the new harness was wired into the dizzy (god knows what the previous owners did). The guy who did it was a relatively new Honda tech, even he is trying to figure out if its compatible.

Worked when i got there, didnt after, doesnt sound faulty ECU to me.

The old thread.
Injector dilemma, me pissed!

jlicrx · 12-29-2008, 09:08 AM

OBD0 ECU requires the use of OBD0 distributor - OBD1 distributor requires the use of OBD1 ECU - distributor signals to ECU are not the same for OBD0 and OBD1

JKOBD.com · 12-29-2008, 09:34 AM

The preOBD distributor uses a 16 tooth injector trigger wheel. The OBD1/2 uses a 24 tooth wheel. If you want to run the OBD1 ecu, then you need an OBD1 or OBD2 distributor.

Justin66 · 12-29-2008, 04:17 PM

Got ya, looks like i need to either convert or go back. Thanks guys.

efhondakid · 12-29-2008, 04:34 PM

Quote:

Originally Posted by Justin66

Got ya, looks like i need to either convert or go back. Thanks guys.

I was waiting for this thread.

Justin66 · 12-30-2008, 06:49 AM

Lol sorry ef, its not that i didnt believe you. Since i know almost nothing on the subject, a couple of other opinions couldnt hurt. Now its the question of which route to go, either one requires more money. Money that i should never have had to spend. Shame on me for assuming, shame on the honda tech for doing it.

efhondakid · 12-31-2008, 12:31 AM

Its cool, just good you finally got it figured out.

Justin66 · 12-31-2008, 07:09 AM

Well lets hope thats it and the god damn thing starts, its been 2 months almost. I have decided to just get an OBD0 dizzy, the same place i bought my other from has them as well, brand new. Maybe i can bring back the OBD1 one, never been used so it should be no problem. If in only i knew my car was OBD0 in the first place, they told me it was OBD1, bastards. Live and learn.

Would there be any harm to the car, mostly engine, being left that long, with dirty oil

?

Justin66 · 12-31-2008, 11:01 AM

On that note, the guy from Honda called me. Told me he looked in the big magic Honda service manual. The sensors use different voltages to operate. OBD0 cant read em. I told him that HS is solid on its info.

I appreciate the help guys, even he didnt know that they did that.

12-29-2008, 06:40 AM	#1
Justin66 The Hondaswap Canadian Join Date: Dec 2007 Location: Peterborough, Ontario Age: 23 Posts: 1,397 iTrader: 0 / 0% Ride: 1998 Prelude and GF's 06 Civic Rep Power: 44	OBD1 Dizzy w/ OBD0 ECU Sorry to post another thread but i am a little confused with a certain OBD compatibility. In a nut shell i put an OBD1 dizzy on my b16a with an OBD0 PR3 ECU. After it was on the car wouldnt fire up. Turns out the injectors arnt firing. I got another working ECU in case mine was fried. Still no avail. Does the ECU have to match the dizzy in order to work? Does a sensor not work with the ECU causing no injector signal? There is a possibility that it was wired improperly since some of the colours did not match when the new harness was wired into the dizzy (god knows what the previous owners did). The guy who did it was a relatively new Honda tech, even he is trying to figure out if its compatible. Worked when i got there, didnt after, doesnt sound faulty ECU to me. The old thread. Injector dilemma, me pissed! __________________ 98 Prelude Base - Full exhaust - Eibach lowering springs - Short ram intake - Short throw shifter XBOX LIVE: JustinE66

12-31-2008, 07:09 AM	#8
Justin66 The Hondaswap Canadian Join Date: Dec 2007 Location: Peterborough, Ontario Age: 23 Posts: 1,397 iTrader: 0 / 0% Ride: 1998 Prelude and GF's 06 Civic Rep Power: 44	Well lets hope thats it and the god damn thing starts, its been 2 months almost. I have decided to just get an OBD0 dizzy, the same place i bought my other from has them as well, brand new. Maybe i can bring back the OBD1 one, never been used so it should be no problem. If in only i knew my car was OBD0 in the first place, they told me it was OBD1, bastards. Live and learn. Would there be any harm to the car, mostly engine, being left that long, with dirty oil?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
obd1 to obd0 dizzy	egdimitri	ECU's, Electronics, and Tuning	3	07-12-2008 10:17 AM
obd0 to obd1 dizzy wiring	pouponu	HYBRID -> ED-EF / DA	0	10-14-2007 06:59 PM
obd0 to obd1 dizzy	badasscrx	ECU's, Electronics, and Tuning	1	06-19-2007 12:45 AM
obd0 dizzy to obd1 wiring please help!!!	electric95122	HYBRID -> EG-EK / DC	0	10-22-2006 11:30 AM
OBD0 cap with obd1 dizzy?	BigBoy	ECU's, Electronics, and Tuning	0	07-31-2005 02:51 AM


Welcome, Guest! Please Register or Login: User Name Password Members have access to more features, better search, and see fewer ads! It's free, what are you waiting for?

12-29-2008, 09:08 AM	#2
jlicrx Senior Member Join Date: Jun 2003 Location: Colorado Springs Posts: 1,608 iTrader: 0 / 0% Rep Power: 66	OBD0 ECU requires the use of OBD0 distributor - OBD1 distributor requires the use of OBD1 ECU - distributor signals to ECU are not the same for OBD0 and OBD1

12-29-2008, 09:34 AM	#3
JKOBD.com Wiring Guru Join Date: Jul 2004 Location: Engineer at the Source Posts: 82 iTrader: 0 / 0% Rep Power: 12	The preOBD distributor uses a 16 tooth injector trigger wheel. The OBD1/2 uses a 24 tooth wheel. If you want to run the OBD1 ecu, then you need an OBD1 or OBD2 distributor.

12-29-2008, 04:17 PM	#4
Justin66 The Hondaswap Canadian Join Date: Dec 2007 Location: Peterborough, Ontario Age: 23 Posts: 1,397 iTrader: 0 / 0% Ride: 1998 Prelude and GF's 06 Civic Rep Power: 44	Got ya, looks like i need to either convert or go back. Thanks guys.

12-30-2008, 06:49 AM	#6
Justin66 The Hondaswap Canadian Join Date: Dec 2007 Location: Peterborough, Ontario Age: 23 Posts: 1,397 iTrader: 0 / 0% Ride: 1998 Prelude and GF's 06 Civic Rep Power: 44	Lol sorry ef, its not that i didnt believe you. Since i know almost nothing on the subject, a couple of other opinions couldnt hurt. Now its the question of which route to go, either one requires more money. Money that i should never have had to spend. Shame on me for assuming, shame on the honda tech for doing it.

12-31-2008, 12:31 AM	#7
efhondakid My name is Byron. Join Date: Mar 2007 Location: Akron-Canton, Ohio Age: 21 Posts: 5,767 iTrader: 2 / 100% Ride: 89' DX Hatch w/B16 Rep Power: 245	Its cool, just good you finally got it figured out.

12-31-2008, 11:01 AM	#9
Justin66 The Hondaswap Canadian Join Date: Dec 2007 Location: Peterborough, Ontario Age: 23 Posts: 1,397 iTrader: 0 / 0% Ride: 1998 Prelude and GF's 06 Civic Rep Power: 44	On that note, the guy from Honda called me. Told me he looked in the big magic Honda service manual. The sensors use different voltages to operate. OBD0 cant read em. I told him that HS is solid on its info. I appreciate the help guys, even he didnt know that they did that.

Hondaswap.com | Honda Technical & JDM styling Forums

OBD1 Dizzy w/ OBD0 ECU