FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
12-20-2006, 06:16 PM
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FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
Since I saw this post on here like 3 times tonite I wanted to make a reference post to send people too so the same info doesn't clog up the board all the time. Feel free to correct or add and I'll add it to the original post to not clog this post up:
OBD0 motor into OBD1 car
<U>Method 1</U>
1. Use OBD1-0 ECU adaptor harness with PR3 ECU
2 Use OBD1-0 distributor adaptor harness or swap plugs over from your OBD1 distributor to the OBD0's distributor
3. Add resistor box and solder the OBD0 injector plugs onto the OBD1 harness and use the OBD0 injectors
4. Use OBD0 B16A header and two 1 wire O2 sensors or OBD1/2 header and weld in two O2 bungs
5. If not an EX or Si run wiring for VTEC solenoid, VTEC pressure switch and Knock sensor (you'll have to add knock sensor regardless what model it is).
6. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
<U>Method 2 </U>
1. Use OBD1 ECU (P28 chipped, P72 chipped, P30)
2. Use a B16a or B18C distributor (can't use OBD0 dizzy with an OBD1 ECU)
3. Use some OBD1 injectors from anything but a CX or VX hatch
4. Use a OBD1/2 B16A header
5 If not an EX or Si run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor regardless what model it is), Also if you car is a CX model you will have to add wiring for a 4 wire O2 sensor.
6. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
OBD0 motor into OBD2 car
<U>Method 1</U>
1. Use OBD2-0 ECU adaptor harness with PR3 ECU
2 Use OBD2-0 distributor adaptor harness or swap plugs over from your OBD2 distributor to the OBD0's distributor
3. Add resistor box and solder the OBD0 injector plugs onto the OBD2 harness and use the OBD0 injectors
4. Use OBD0 B16A header and two 1 wire O2 sensors or OBD1/2 header and weld in two O2 bungs
5. If not an EX or Si run wiring for VTEC solenoid, VTEC pressure switch and Knock sensor (you'll have to add knock sensor regardless what model it is)
6. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
7. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
<U>Method 2</U>
1. Use OBD2-1 ECU adaptor and use P28 chipped, P72 chipped, P30 or P72 for B18C/C1 motors
2. Use an OBD1 B16a or B18C distributor with an OBD2-1 distributor adaptor or convert the plugs from your cars distributor over to the OBD1 distributor
3. Use OBD2 injectors from your vehicle
4. Use a OBD1/2 B16A header
5 If not an EX or Si (99-00) run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor unless it is an SI).
6. If you have an auto car or a non VTEC model you will have to wire in for a 2 wire IACV as your's is a 3 wire.
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
8. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
<U>Method 3</U>
1. Use an OBD2 ECU P2T from a 99-00 SI
2. Use OBD2 distributor from a B18C1 or B16A2, or an OBD1 dizzy from a B16A/B18C1 either swapping over the plugs or using a dizzy adaptor, can't use OBD0 dizzys on OBD2 ECU's
3. Use the OBD2 injectors from your engine
4. Use an OBD1/2 header
5. If not an EX or Si (99-00) run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor unless it is an SI).
6. If you have an auto car or a non VTEC model you will have to wire in for a 2 wire IACV as your's is a 3 wire.
7. You'll also need to trick the CKF at the ECU so the ECU won't throw a code (http://www.ff-squad.com/technet/ckftrick.htm)
8. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
9. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
OBD1 engine into OBD0 car
<U>Method 1</U>
1. Use OBD0 ECU PR3/PWO
2. You must use an OBD0 distibutor with the PR3 ECU from an OBD0 B16A
3. Use OBD0 injectors from an SI/EX
4. Use OBD0 B16A header and weld in bungs for 2 O2's
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
<U>Method 2</U>
1. Use OBD1 ECU with an OBD0-1 ECU harness
2. Use OBD1 distributor with OBD0-1 dizzy harness or swap plugs over from your cars distributor to the OBD1 distributor (EX/SI/HF/all integra models only)
3. Use OBD0 injector but you must keep the injector resistor box or use the OBD1 injectors (solder OBD1 plugs onto the OBD0 harness) and eliminate the injector box.
4. Use OBD1/2 B16A header
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
<U>Method 3</U>
1. You can use an OBD2 ECU but I won't go into it because most people don't go this way.
OBD2 motor into OBD0 car
<U>Method 1</U>
1. Use OBD0 ECU PR3/PWO
2. You must use an OBD0 distibutor with the PR3 ECU from an OBD0 B16A
3. Use OBD0 injectors from an SI/EX
4. Use OBD0 B16A header and weld in bungs for 2 O2's
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
6. Convert over plug on your OBD2 alternator to the OBD0 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
7. You'll have to hook up your Intake air temperature sensor in the intake arm somewhere as the OBD2 motor doesn't have a spot for it (unless its LS/B20/GSR).
<U>Method 2</U>
1. Use OBD1 ECU with an OBD0-1 ECU harness
2. Use OBD2 distributor with OBD0-2 dizzy harness or swap plugs over from your cars distributor to the OBD2 distributor (EX/SI/HF/all integra models only)
3. Use OBD0 injector but you must keep the injector resistor box or use the OBD2 injectors (solder OBD1 plugs onto the OBD0 harness) and eliminate the injector box.
4. Use OBD1/2 B16A header
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
6. Convert over plug on your OBD2 alternator to the OBD0 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
You'll have to hook up your Intake air temperature sensor in the intake arm somewhere as the OBD2 motor doesn't have a spot for it.
<U>Method 3</U>
1. You can use an OBD2 ECU but I won't go into it because most people don't go this way.
OBD2 motor into OBD1 car
<U>Method 1</U>
1. Use 94-01 Integra harness (GSR for VTEC engines and LS/GS for non-VTEC). For the most part plug and play. You will have some extra plugs for 96up harnesses (Crank-TDC sensor, etc). For 94-95 harnesses you will either need to use your OBD1 injectors or solder on the OBD2 injector plugs and will have to to swap over alternator connectors on your alternator to the OBD1 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg).
2. For B16A2 you will need to place your intake air temperature sensor from your old motor into the intake arm or somewhere suitable.
3. Use any OBD1 corresponding ECU to your engine.
<U>Method 2</U>
1. Use your stock harness and add wiring for VTEC solenoid, VTEC pressure switch, knock sensor (IAB wiring if using B18C engine) unless its an EX/VX/Si then you will just need to add wiring for knock sensor (see IAB for GSR).
2. For B16A2 you will need to place your intake air temperature sensor from your old motor into the intake arm or somewhere suitable.
3. Use your OBD1 injectors or solder on some OBD2 plugs onto your stock harness.
4. Use a distributor adapter harness for OBD1-OBD2.
5. If coming from a VX or CX vehicle you will need to do some additional oxygen sensor wiring (for CX adding 3 wires, VX additional wiring to 4 wire sensor).
OBD0 motor into OBD2 car
<U>Method 1</U>
1. Use OBD2-0 ECU adaptor harness with PR3 ECU
2 Use OBD2-0 distributor adaptor harness or swap plugs over from your OBD2 distributor to the OBD0's distributor
3. Add resistor box and solder the OBD0 injector plugs onto the OBD2 harness and use the OBD0 injectors
4. Use OBD0 B16A header and two 1 wire O2 sensors or OBD1/2 header and weld in two O2 bungs
5. If not an EX or Si run wiring for VTEC solenoid, VTEC pressure switch and Knock sensor (you'll have to add knock sensor on any other models)
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
<U>Method 2 </U>
1. Use OBD1 ECU (P28 chipped, P72 chipped, P30)
2. Use a B16a or B18C distributor (can't use OBD0 dizzy with an OBD1 ECU)
3. Use some OBD1 injectors and solder OBD1 plugs onto the OBD2 harness or use your OBD2 injectors
4. Use a OBD1/2 B16A header
5 If not an EX or Si run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor on any other models),
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
OBD1 motor into OBD2 car
<U>Method 1</U>
1. Use an OBD2-1 ECU harness with a P28 chipped, P30, or P72 for B18C1
2. Use either an OBD1 B16A distributor with an OBD2-1 dizzy adaptor or swap plugs from your OBD2 dizzy over to the OBD1 dizzy or use a OBD2 dizzy from a B16A or B18C
3. Use your OBD2 injectors
4. Use an OBD1/2 header
5. If not an SI or EX run wiring for VTEC solenoid, VTEC pressure switch and knock sensor (you'll have to run knock sensor on any other models). On B18C1 you'll have to wire up for IAB's also.
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
<U>Method 2</U>
1. Use a P2T ECU
2. Use either an OBD1 B16A distributor with an OBD2-1 dizzy adaptor or swap plugs from your OBD2 dizzy over to the OBD1 dizzy or use a OBD2 dizzy from a B16A or B18C
3. Use your OBD2 injectors
4. Use an OBD1/2 header
5. If not an SI or EX run wiring for VTEC solenoid, VTEC pressure switch and knock sensor (you'll have to run knock sensor on any other models). On B18C1 you'll have to wire up for IAB's also.
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
<U>Method 3</U>
1. You can use an OBD0 ECU but is not recommended
Modified by HondaPartsHero at 6:22 PM 12/21/2006
Modified by HondaPartsHero at 2:16 PM 12/22/2006
OBD0 motor into OBD1 car
<U>Method 1</U>
1. Use OBD1-0 ECU adaptor harness with PR3 ECU
2 Use OBD1-0 distributor adaptor harness or swap plugs over from your OBD1 distributor to the OBD0's distributor
3. Add resistor box and solder the OBD0 injector plugs onto the OBD1 harness and use the OBD0 injectors
4. Use OBD0 B16A header and two 1 wire O2 sensors or OBD1/2 header and weld in two O2 bungs
5. If not an EX or Si run wiring for VTEC solenoid, VTEC pressure switch and Knock sensor (you'll have to add knock sensor regardless what model it is).
6. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
<U>Method 2 </U>
1. Use OBD1 ECU (P28 chipped, P72 chipped, P30)
2. Use a B16a or B18C distributor (can't use OBD0 dizzy with an OBD1 ECU)
3. Use some OBD1 injectors from anything but a CX or VX hatch
4. Use a OBD1/2 B16A header
5 If not an EX or Si run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor regardless what model it is), Also if you car is a CX model you will have to add wiring for a 4 wire O2 sensor.
6. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
OBD0 motor into OBD2 car
<U>Method 1</U>
1. Use OBD2-0 ECU adaptor harness with PR3 ECU
2 Use OBD2-0 distributor adaptor harness or swap plugs over from your OBD2 distributor to the OBD0's distributor
3. Add resistor box and solder the OBD0 injector plugs onto the OBD2 harness and use the OBD0 injectors
4. Use OBD0 B16A header and two 1 wire O2 sensors or OBD1/2 header and weld in two O2 bungs
5. If not an EX or Si run wiring for VTEC solenoid, VTEC pressure switch and Knock sensor (you'll have to add knock sensor regardless what model it is)
6. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
7. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
<U>Method 2</U>
1. Use OBD2-1 ECU adaptor and use P28 chipped, P72 chipped, P30 or P72 for B18C/C1 motors
2. Use an OBD1 B16a or B18C distributor with an OBD2-1 distributor adaptor or convert the plugs from your cars distributor over to the OBD1 distributor
3. Use OBD2 injectors from your vehicle
4. Use a OBD1/2 B16A header
5 If not an EX or Si (99-00) run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor unless it is an SI).
6. If you have an auto car or a non VTEC model you will have to wire in for a 2 wire IACV as your's is a 3 wire.
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
8. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
<U>Method 3</U>
1. Use an OBD2 ECU P2T from a 99-00 SI
2. Use OBD2 distributor from a B18C1 or B16A2, or an OBD1 dizzy from a B16A/B18C1 either swapping over the plugs or using a dizzy adaptor, can't use OBD0 dizzys on OBD2 ECU's
3. Use the OBD2 injectors from your engine
4. Use an OBD1/2 header
5. If not an EX or Si (99-00) run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor unless it is an SI).
6. If you have an auto car or a non VTEC model you will have to wire in for a 2 wire IACV as your's is a 3 wire.
7. You'll also need to trick the CKF at the ECU so the ECU won't throw a code (http://www.ff-squad.com/technet/ckftrick.htm)
8. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
9. You'll have to use an OBD1 throttle body with a MAP sensor on top or grab a wall mounted MAP sensor and mount it in your bay somewhere.
OBD1 engine into OBD0 car
<U>Method 1</U>
1. Use OBD0 ECU PR3/PWO
2. You must use an OBD0 distibutor with the PR3 ECU from an OBD0 B16A
3. Use OBD0 injectors from an SI/EX
4. Use OBD0 B16A header and weld in bungs for 2 O2's
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
<U>Method 2</U>
1. Use OBD1 ECU with an OBD0-1 ECU harness
2. Use OBD1 distributor with OBD0-1 dizzy harness or swap plugs over from your cars distributor to the OBD1 distributor (EX/SI/HF/all integra models only)
3. Use OBD0 injector but you must keep the injector resistor box or use the OBD1 injectors (solder OBD1 plugs onto the OBD0 harness) and eliminate the injector box.
4. Use OBD1/2 B16A header
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
<U>Method 3</U>
1. You can use an OBD2 ECU but I won't go into it because most people don't go this way.
OBD2 motor into OBD0 car
<U>Method 1</U>
1. Use OBD0 ECU PR3/PWO
2. You must use an OBD0 distibutor with the PR3 ECU from an OBD0 B16A
3. Use OBD0 injectors from an SI/EX
4. Use OBD0 B16A header and weld in bungs for 2 O2's
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
6. Convert over plug on your OBD2 alternator to the OBD0 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
7. You'll have to hook up your Intake air temperature sensor in the intake arm somewhere as the OBD2 motor doesn't have a spot for it (unless its LS/B20/GSR).
<U>Method 2</U>
1. Use OBD1 ECU with an OBD0-1 ECU harness
2. Use OBD2 distributor with OBD0-2 dizzy harness or swap plugs over from your cars distributor to the OBD2 distributor (EX/SI/HF/all integra models only)
3. Use OBD0 injector but you must keep the injector resistor box or use the OBD2 injectors (solder OBD1 plugs onto the OBD0 harness) and eliminate the injector box.
4. Use OBD1/2 B16A header
5. Add wiring for VTEC solenoid, VTEC pressure switch, knock sensor, and 2nd O2. For B18C1 engines you must either use a Skunk2 type manifold or find a way to make a switched ground switch to open the IAB's.
6. Convert over plug on your OBD2 alternator to the OBD0 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
You'll have to hook up your Intake air temperature sensor in the intake arm somewhere as the OBD2 motor doesn't have a spot for it.
<U>Method 3</U>
1. You can use an OBD2 ECU but I won't go into it because most people don't go this way.
OBD2 motor into OBD1 car
<U>Method 1</U>
1. Use 94-01 Integra harness (GSR for VTEC engines and LS/GS for non-VTEC). For the most part plug and play. You will have some extra plugs for 96up harnesses (Crank-TDC sensor, etc). For 94-95 harnesses you will either need to use your OBD1 injectors or solder on the OBD2 injector plugs and will have to to swap over alternator connectors on your alternator to the OBD1 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg).
2. For B16A2 you will need to place your intake air temperature sensor from your old motor into the intake arm or somewhere suitable.
3. Use any OBD1 corresponding ECU to your engine.
<U>Method 2</U>
1. Use your stock harness and add wiring for VTEC solenoid, VTEC pressure switch, knock sensor (IAB wiring if using B18C engine) unless its an EX/VX/Si then you will just need to add wiring for knock sensor (see IAB for GSR).
2. For B16A2 you will need to place your intake air temperature sensor from your old motor into the intake arm or somewhere suitable.
3. Use your OBD1 injectors or solder on some OBD2 plugs onto your stock harness.
4. Use a distributor adapter harness for OBD1-OBD2.
5. If coming from a VX or CX vehicle you will need to do some additional oxygen sensor wiring (for CX adding 3 wires, VX additional wiring to 4 wire sensor).
OBD0 motor into OBD2 car
<U>Method 1</U>
1. Use OBD2-0 ECU adaptor harness with PR3 ECU
2 Use OBD2-0 distributor adaptor harness or swap plugs over from your OBD2 distributor to the OBD0's distributor
3. Add resistor box and solder the OBD0 injector plugs onto the OBD2 harness and use the OBD0 injectors
4. Use OBD0 B16A header and two 1 wire O2 sensors or OBD1/2 header and weld in two O2 bungs
5. If not an EX or Si run wiring for VTEC solenoid, VTEC pressure switch and Knock sensor (you'll have to add knock sensor on any other models)
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
<U>Method 2 </U>
1. Use OBD1 ECU (P28 chipped, P72 chipped, P30)
2. Use a B16a or B18C distributor (can't use OBD0 dizzy with an OBD1 ECU)
3. Use some OBD1 injectors and solder OBD1 plugs onto the OBD2 harness or use your OBD2 injectors
4. Use a OBD1/2 B16A header
5 If not an EX or Si run wiring for the VTEC solenoid, VTEC pressure switch, and knock sensor (you'll have to add knock sensor on any other models),
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
OBD1 motor into OBD2 car
<U>Method 1</U>
1. Use an OBD2-1 ECU harness with a P28 chipped, P30, or P72 for B18C1
2. Use either an OBD1 B16A distributor with an OBD2-1 dizzy adaptor or swap plugs from your OBD2 dizzy over to the OBD1 dizzy or use a OBD2 dizzy from a B16A or B18C
3. Use your OBD2 injectors
4. Use an OBD1/2 header
5. If not an SI or EX run wiring for VTEC solenoid, VTEC pressure switch and knock sensor (you'll have to run knock sensor on any other models). On B18C1 you'll have to wire up for IAB's also.
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
<U>Method 2</U>
1. Use a P2T ECU
2. Use either an OBD1 B16A distributor with an OBD2-1 dizzy adaptor or swap plugs from your OBD2 dizzy over to the OBD1 dizzy or use a OBD2 dizzy from a B16A or B18C
3. Use your OBD2 injectors
4. Use an OBD1/2 header
5. If not an SI or EX run wiring for VTEC solenoid, VTEC pressure switch and knock sensor (you'll have to run knock sensor on any other models). On B18C1 you'll have to wire up for IAB's also.
6. If your vehicle is an auto or non VTEC you'll have to convert over to a two wire O2
7. Convert over plug on your OBD0 alternator to the OBD2 style (http://img.photobucket.com/albums/v130/fobtions/alt.jpg)
<U>Method 3</U>
1. You can use an OBD0 ECU but is not recommended
Modified by HondaPartsHero at 6:22 PM 12/21/2006
Modified by HondaPartsHero at 2:16 PM 12/22/2006
Last edited by HondaPartsHero; 12-09-2009 at 05:18 PM.
01-03-2007, 12:12 AM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (HondaPartsHero)
do u have any wiring methods for obd2 motor into obd1 car? new obstacle for my awaiting swap. 
11-17-2009, 01:56 PM
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11-17-2009, 02:03 PM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (HondaPartsHero)
'94 - '01 Integra engine harness makes it plug and play ('96 - '99 is preferable as '00 - '01 Integra harnesses need to have the tach signal wire added if you want a functioning tach.
05-16-2011, 12:36 PM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
okay so crx obd0, if i convert it to obd1 using this harness conversion, http://www.hondata.com/techobd0conversion.html, and i have a b18c (R) which is obd2. My question is it possible to wire my 91 crx si to run obd1, drop the motor in it, convert the engine to obd1 using this converter, http://www.msdignition.com/uploadedF...structions.pdf, and veni veni vechi, obd2 engine in a obd0 car running obd1?
Last edited by r3ck73ss909; 05-16-2011 at 12:56 PM.
12-12-2012, 11:16 AM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
I have a obd1 b16, ecu an engine harness out of a 94 eg hatch, im putting it into my 96 ej9 saloon obd2 which instructions are for me lol?
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05-28-2013, 09:50 AM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
Ok I know you said you wouldn't go into it but. I am trying to help a friend with a 1990 obd0 integra convert to obd2a to reff his car. I need to know how to wire the obd2a scanner port and everything. If you can help that would be great.
05-28-2013, 02:09 PM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
That's a new one on me, honestly your best bet is to get an official Honda manual and start there with many long nights of no sleep 
05-03-2023, 05:32 PM
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Re: FAQ: OBD2 into OBD1 into OBD0 into vice versa (WIRING ONLY)
Have a obd1 in a obd2 car, b16, got the p2t ecu but how do I get rid of the cel’s for inspection. One of the cels is p1259, what exactly do I have to fix/bypass?
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