I don't know if anyone can help me with this, but I just put a obd2 B18c motor in my 94 Civic Coupe which is obviously obd1. I purchased Password:JDM's distributor jumper harness instead of going through the hassel of getting a different distributor or attempting to re-wire the obd2 distributor. The motor fires up and runs, however I am getting a check engine light w/codes 41 (heated oxygen sensor heater), 4 (crankshaft position sensor), and 7 (TPS). I'm assuming that the reason I'm getting the 41 is because I'm running a test pipe and maybe just a bad TPS sensor is why I'm getting code 7, but my question is....

Is the distributor jumper harness the reason I'm getting code 4? I was told that it could be since the location of the sensor is in different places on obd1 as oppose to obd2. I already called PasswordJDM, but they didnt seem to know. Can anybody help me?

 

obd1 crank sensor is in the dizzy
obd2 is in the oil pump (sensor).
do this
http://rywire.com/store/faqdesk_info...006f57ab5ac04b

 

if not just run a obd2 gsr harness with a obd1 p72...

 

he cant use an obd2 harness. (1 piece) he has an obd1 car (2 peice)

 

yes he can...obd2 and obd1 gsr harness are 2 piece, one comes from the ecu to the shock tower, then from the shock tower to the motor, your probaly talking about the obd2 civic harness, now those are 1 piece from ecu all the way to motor...

the op can run a obd2 gsr harness on his 94 civic, repin the shock tower for secondary butterfly and o2, everything will work fine you won't have to get obd1 dizzy or injectors...doing that should eliminate code 41 and 4...you might just have a bad tps.

i have the same set up on my 92 vx hatch, 98 obd2 b18c1, obd2 gsr harness, repin shock tower for secondary butterfly and o2, and with obd1 p72

 

crap, i really appreciate all the info. i checked out that link to Rywire and the only problem is I'm using a obd1 p72. is this part of my problem? And I'd really hate to have to try and hunt down an obd2 gsr harness. Is there anyway I can just get this thing running good for the time being untill i can afford to get new harness from rywire or chase bays?

 

trade that p72 for that p28 you just gave aldofo

 

Does he need a p72?

 

no, you sold him a p28 he has a b18c, hed trade you for the obd1 p72
you should still be able to do that cfk trick


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