Ok let's see so I have 91 Civic Si, I swapped a B20B in and I get CRANK BUT NO START I have spark and I'm assuming the motor is good since I bought it 4rm password so I have the OBD0 WIRING, WITH A P28 CHIPPED WITH B20 BASE MAP, THE MOTOR IS OBD2 I KEPT THE OBD 2 DIZZY AND INJECTORS I DIDN'T CHANGE CLIPS ON HARNESS JUST MADE EM FIT BUT YEAH SO NOW I CRANK IT AND IT DOESN'T START I KNOW I GET SPARK NOT 100% ON FUEL SO I WANNA KNOW IF MAYBE WIRES GOTTA BE SWITCHED ON INJECTOR OR I TRIED USING OBD0 map sensor ill try with obd2 but do I gotta switch wires around help guys . Oh and also I got gsr trans with stage 1 exedy with original clutch cable and pedal gets stuck any tips on what's causing that. Any thoughts tired of seeing this car in garage help so close but so far to getting it out.

 

i would use whatever injectors your engine harness is for. so use obd0 injectors w/ a resistor box(assuming you have an ef). and try adjusting your clutch cable, if its all the way tight then replace it or check to make sure it is connected to your clutch pedal

 

 

Well the clutch pedal thing worked so thnx. But I got the obd0 injectors and now it cranks and every now and then sounds like it wants to start it get to the point where usually ull give it gas to rev up to keep from diyng but just falls flat on its face so its getting better but still bad any other thoughts also can I use the obd0 map sensor or should I use obd1 or use the obd2 that's on the mani. I checked timing it look fine. If I'm getting spark that should mean dizzy wiring is good right anyone know the pinout for obd0 harness to obd2 dizzy so I can double check it

 

Your trying to mix to many things into one setup. You need to figure out what you want to run. It doesn't matter what the motor is setup for. You need to run OBD-0 to OBD-1 conversion on the car, assuming you want OBD-1 since you went with the P28. You can get away with running OBD-0 injectors as long as you use the resistor box. The MAP you will want to go with the OBD-1, find a OBD-1 LS dizzy or like you said repin the one you have for OBD-1. You will also need a 4- wire O2 and hook up the knock sensor.

 

Yeah so I did do the obd0 injectors I'm about to extend the wires for the obd1 map sensor do I have to switch any around for it to work or is it all the same and I don't have knock sensor jdm motor and o2 was eliminated on ecu but I am getting a CEL so idk

 

If your getting a cel for o2, then you need the o2. Honestly I haven't heard of deleting the o2 from the ecu. All the wiring is the same for the MAP, until you swap to a 3-Bar. Even though it's a jdm motor you still need the knock if the ecu calls for it.

 

chipped p28's don't search for a knock sensor so its not necessary. does your throttle body have a map sensor on top of it? if not then the obd0 map sensor is fine. and yeah get a o2 sensor connected

 

Ok so I fixed all my CEL's and I still have no start this **** is pissing me off. Any one have the obd0 to obd2 dizzy wire conversion pinouts so I can double check those. Since I'm running short on ideas

 

It was the dizzy! Went to obd1 integra dizzy and started right up thanks people