obd1 ecu wiring
08-26-2011, 12:59 PM
#1
Honda-Tech Member
Thread Starter
obd1 ecu wiring
hello once again honda peeps alright i was searching for a dash harness for like 3 months and now i have found one and its a non vtec one because apparently the place i ordered it from doesnt know the difference between the two and they dont actually have a vtec but anyway i have been looking at a pin out diagram to wire in vtec
http://www.ff-squad.com/technet/wiring.obd1.htm
and it says that connector A slot 21 and 22 are for the ignition control module i need to know if both of those are used because mine only has a wire in slot 21
car-1994 civic dx coupe
engine-obd1 b16a
ecu-chipped p28
http://www.ff-squad.com/technet/wiring.obd1.htm
and it says that connector A slot 21 and 22 are for the ignition control module i need to know if both of those are used because mine only has a wire in slot 21
car-1994 civic dx coupe
engine-obd1 b16a
ecu-chipped p28
08-27-2011, 12:52 PM
#4
Honda-Tech Member
Thread Starter
Re: obd1 ecu wiring
ok really 142 views and no replies does no one know about this or did i just ask a retarded question
this is kinda vital i need to know if i need to put a new wire in before installing the whole harness
this is kinda vital i need to know if i need to put a new wire in before installing the whole harness
08-29-2011, 07:47 AM
#6
Honda-Tech Member
Re: obd1 ecu wiring
Shouldn't matter. Both A21 & A22 connect to each other along the way. If you have issues starting the car, then just add a pin into the A22 slot and splice the wire (soldering it) to the existing A21 wire.
08-29-2011, 09:59 AM
#7
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Re: obd1 ecu wiring
on a P28, the two points in the ECU are jumpered together, it shouldn't matter at all.
also the only difference between VTEC and non-VTEC harnesses is the VTEC related wires. It's plug-and-play between the two as far as starting the car.
If you're having start problems it's something else.
also the only difference between VTEC and non-VTEC harnesses is the VTEC related wires. It's plug-and-play between the two as far as starting the car.
If you're having start problems it's something else.
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08-29-2011, 01:35 PM
#9
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Re: obd1 ecu wiring
I hate to sound like an *** but, it`s kinda of a 'retarted' question because it has been asked before. Either Google it, or better yet, search the forum. Use the 'Advanced Search' option. Just my 2-cents.
08-29-2011, 04:47 PM
#10
Honda-Tech Member
Thread Starter
Re: obd1 ecu wiring
see now that wasnt to hard was it and the only time i start threads is when i cant figure it out or research turns up either bullshit or nothing thats why i joined honda-tech because i live in the middle of nowhere and run it to alot of quick fix things on my poor civic
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