obd question (smart people inquire within)
3.0 BAR
Joined: Nov 2004
Posts: 5,101
Re:obd question (smart people inquire within)
What happened to the B18A1 in the teg in the first place? Anyway, you will have ot do a few things to get hte car to OBD1. As stated before, new dizzy, new heated o2 sensor (placed before the cat) new map sensor (the 90-91 isa 2 bar OBD 1 is 3 bar), you will have to use the ALT that came out of the car you transplant the motor in, VSS, you might have to deal with the IAT (i dont remember if it is in the intake or before the TB on the B18B (AKA depends whatyear the B18B is), the plugs will be diffrent for an OBD1 dizzy compaired to the OBD 0 harness, The VSS is a 3 wire sensor that replaces the mechanical one BUT you will have ot figure out how you are going to get the spedo then (90-93 teg is a spedo cable and OBD 1 civics and 94 + integras have electronic spedos.) You may be able to run a 92 or 93 integra LS ECU (OBD1) and get arroudn alot of this crap. I ll have to find the pinouts later on to compair
anyway that is what is off the top of my head, im sure ill come up with more.
-OnYx
anyway that is what is off the top of my head, im sure ill come up with more.-OnYx
3.0 BAR
Joined: Dec 2002
Posts: 3,829
Re:obd question (smart people inquire within)
as for the wiring, you have 2 choices:
1-Get both wiring schematics for OBD-0 and OBD-1 and repin the entire obd-0 ecu harness with the new obd-1 plugs, OR
2-Get an OBD-0 ----> OBD-1 adapter harness.
You need an obd-1 dizzy. Your old harness will not plug in (round plug into square hole, hmmmm) so you will have to get an obd-1 harness-side dizzy plug (just cut one off at a wrecker and stuff it in your pocket), and swap/solder the wires. There are only 7 to do, and you'll need both wiring schematics.
You also have to add 3 wires for the new heated o2 sensor you'll have to run.
1-Get both wiring schematics for OBD-0 and OBD-1 and repin the entire obd-0 ecu harness with the new obd-1 plugs, OR
2-Get an OBD-0 ----> OBD-1 adapter harness.
You need an obd-1 dizzy. Your old harness will not plug in (round plug into square hole, hmmmm) so you will have to get an obd-1 harness-side dizzy plug (just cut one off at a wrecker and stuff it in your pocket), and swap/solder the wires. There are only 7 to do, and you'll need both wiring schematics.
You also have to add 3 wires for the new heated o2 sensor you'll have to run.
As far as the MAP is concerned, your original will work fine.
Thread Starter
0.0 BAR
Joined: Feb 2003
Posts: 0
Re:obd question (smart people inquire within)
No, I don't have this car yet, that is why I am asking. I'm buying an integra for the future turbo plans, I was just trying to make sure I could use the hondata with the 90 or 91 even though thier site says its not compatable. If so, wanted to find out how much it would take to convert. Thats all
1.0 BAR
Joined: May 2003
Posts: 346
Re:obd question (smart people inquire within)
hey man, go to www.JDMhondaparts.com and click on ECU and jumper services, they got what you need...peaace
