i have a 91 hf with a poor mans r in it.. i want to know why when you do the obd1 swap you have to change the dizzy to a obd1 dizzy? skematics show them to be the exact same minus a few wires need moved around at most.. and why does everyone say you have to change to obd1 injector clips? wtf is that all about? why just clips? why not change to obd1 injectors and get rid of that problematic resistor box? which i plan to do.

any help is appreciated..


and i did search lol

 

alright, 2 issues.

first, the distributor. The distributor, despite being a very similar to the same pinout, has a different output waveform from one of the sensors that is so different, the obd1 computer can't figure out what it is, and thinks the sensor is broken. obd1 and obd2 distributors use the same sensors, so you can mix and match them, but OBD0 distributors must only be used with the OBD0 computer because of the strange waveform it outputs.

Second issue, the injectors. The fuel injectors for nearly every NA honda made to this point are 240cc injectors. you just change the clips to run the OBD1 injectors because the injectors get the same pulse width signal from the ECU, regardless if it is a obd0 or 1 or 2 ecu. IMHO, changing to obd1 injectors is a HUGE waste of time, because you have to change the clips because they are different for obd1+ injectors, AND you have to remove the resistor box because the OBD1 injectors are already high impedance, while the OBD0 injectors are low impedance, thus requiring the resistor box. what you SHOULD do is get some obd0 injectors if you are still running them, and use them, because they will run the same as the OBD1 injectors as long as you leave your resistor box in, and then you don't have to change the injector clips.

 

great.. thanks for the help bro. i will more than likely keep my obd0 injectors and clips and more than likely go with a set of low impedance rc injectors. now i just need to find a obd1 b16 dizzy thats new for cheap..lol