so i asked the guys in the other forum and they weren't very clear and I was hoping the gurus in the tech section could shed some light,

I currently own a 93 EJ1 with a fresh b16a2 swap and im using an obd2 gsr wire harness, the ecu in the vehicle is a virgin p28 but it isn't chipped for b16a2.and i donnt have a jumper harness: Do I need to get that virgin ecu reprogrammed in order for the vehicle to fire up???

 

if it's virgin it needs to be "chipped" and then made to run the B16. you could send it out to be chipped and most anyone doing that could include a B16 base ROM for you.

so the engine harness is OBD-2 but the dash harness is still OBD-1..? i'm not sure if you need an adapter harness or if it would just be easier to re-pin a few wires in the connecter.

if you don't find what you're looking for here, try PGMFI.org.

 

a virgin p28 should let the car start but it is not the correct ecu for the engine. have it chipped with a b16 rom or get a p30 ecu from the del sol vtec

 

Yessir. the dash harness is obd1 and engine harness is obd2, when I try to check for cel the light just gives me consecutive long flashes for about an hour w/ no short ones haha.. this is what led me to believe something was def wrong. Do the make adapters for the dash harness???

if anyone knows what I can use plz post up!

 

no need for the adapter harness, I run an OBD2 engine/harness with an OBD1 chassis/dash harness and have no problems.
the long flash for eternity means you have a CEL, specifically 10 (IAT) Unless there's two pulses then a pause then two again, then it's CEL20 (ELD)
if the CEL turns on and stays on then you may have a problem with the ECU.

 

more info here as well
http://www.ff-squad.com/technet/hybrid.92-95.obd2.htm

 

you will need a jumper harness for the ecu to start it up.

just in case that isnt clear.

 

no he has an obd1 dash harness and obd1 ecu so he is set. his comment about the obd2 engine harness was a bit confusing at first but it is actually irrelavant to his question.

 

Good luck man.

 

i took the ecu out and testd it my buddys hatch. it works perfectly. I was told by a local shop that if i used a p30 ecu (for obd1 b16) I'd be fine, OR swapped my harness for a d16z6 one and change plugs for alternator, injectors etc.. the guy who i was talking to said he ran into a similar problem. Just out of curiousity, what ecu, engine, harness are in your car???

 

"Simply use an OBD1 ecu respective to your engine type i.e. OBD2 GSR engine -> use an OBD1 GSR/P72 ecu" <<< this is what it says here: http://www.ff-squad.com/technet/hybrid.92-95.obd2.htm

the thing is that my ECU is p28.(NOT respective to my engine type) now, i know some ppl who are running p28 ECUs in their obd2 b16 engine swaps but theyre using the obd1 z6 harness.

I need to know if there is anyone out there who is running a OBD2 engine and harness with a virgin p28 ECU. otherwise I think I may have solved the puzzle. P28 ecus can only be utilized with the b16a2 swap ONLY with an obd1 harness??? we'll just have to wait and see.. any further input would be orgasmic, and sry if I confused any of you, bear with me. engilsh is not my first language.

 

i think you are overthinking the process. the car will start with the current ecu (virgin p28)

here are the options to have the car running correctly (meaning optimal fuel and timing maps)
1. have your chipped ecu reprogrammed with a b16 map
2. get a p30 ecu

thats it, what engine harness you have does not effect the ecu

 

92 civic with a '00 ITR.
chassis/dash harness from the civic
engine harness from the ITR.
ECU, I have several (I also work on ECUs) The one I use typically is basically a P28... it's a chipped P06 that has the VTEC parts added. But I've used everything from a chipped P08 to a highly modified P30 to a JDM P73 with a conversion harness that I made.

The P30 will require you to run the knock sensor wire from the passenger plugs to the ECU. But that's not a bad thing.

IMO, leave the harnesses you have alone. Unless you're hinting that you're having problems, which you haven't said in this post.



I couldn't have said it any better.
also, the stock P28 will run the car if you have to move it, or get it somewhere to have it chipped. Just keep your foot out of the throttle and take it easy.
1.6L SOHC to 1.6L DOHC is not that different if you keep it in the low cam (out of VTEC)

 

The only other problem I think of is that Im missing the sensor behind the crank and also missing thermostat sensor and the one that goes on the intake mani right above injectors(its white idk what its called) but I doubt this would prevent the vehicle from running