OBD0 to OBD1

INFORMATION Articles / Teg Tips
1

For people looking for good links for obd0-1 conversion info
http://www.crimethink.org/gsr_swap/b17a1.html
http://www.hasport.com/Tech/Wring/Conversion%20NonOBD-OBD1.htm
http://b16a.honda-perf.org/theswap.html

I made the conversion harness myself since I had the parts needed laying around. The harness follows the
Hasport Pinouts
Wiring the distributor can be tricky. Follow the distributor pinouts by hasport and match the wire colors on the engine harness to distributor.

I have done the following:
ecu conversion harnness
chipped p28
4wires o2 Sensor
obd1 distributor
vtec spool wire
oil pressure switch

Unfortunely I cant start up the engine. It cranks fine, I have spark, the distributor. I tested the Ecu on another car and the ecu is good. The fuel pump primes for 2seconds @ ON position and the ecu is getting power.

  1. I’m guessing the main relay might be bad, yet the fuel pump works…
  2. All my injector are dead??(never heard of that)
  3. missing a ground for injectors?(car ran fine before the conversion)
2

I’m keeping the stock resistor box and using obd0 peak/hold injectors
The resistor box resistance is good at 6ohms and is getting ign power.
I placed a rag over the injector nozzle, cranked the car and the rag was still dry.

How do you test if the injectors are bad?

3

Ray u run thru the fuel system flow chart in the helms? those things have helped me out more than once…

4

to check if injeector bad first measure the resistance of each injector (Obd0 are around 5-7 ohms - i think)…also pull the spark plug and coil wires then crank the motor for about 5-10sec then pull the plugs you should smell gas at each cylinder if not that cylinder is not getting gas and the injector is bad (if no cylinder gets gas than check fuel delivery system - rail, line, filter, pump, etc.)