civic89si666

Ok, so i did search before i posted this. But noone really had any answers for me. Ive got a 1995 civic cx hatch with a gsr in it. Im having serious problems. Over the past couple weeks ive had a lot of days where the car wont start. So heres my problem. I have a code 15 (ignition output signal). when the car would run, it wouldnt hit vtec and when i tried hitting vtec it would just bounce like it hit redline and the tach would go crazy, like as if it shut off and turned back on. Then one day, it just wouldnt start. Now I've replaced both the coil and control module several times and still no spark. Ive got all the fuel in the world going into the motor. I'm guessing its wire related. Ive replaced the plugs with new ones cuz the wires were old so no issues there. But could there be a short between the blue wire(coil) and the black and yellow wire (ignition switch) thats causing this problem? What does the big blue wire run into on the ecu side of things? please help its my daily and i have to get it running ASAP

civic89si666

damn lots of views, no help :-(

Former User

Check for battery voltage on the BLK/YEL wire attached to the igniter unit. Also check whether the YEL/GRN wire running between the igniter and ECU has continuity and no short.

The blue wire is for the tach.

civic89si666

and that would cause the no vtec situation and the no start? also which yellow green wire is it? isnt there two of them?

boyong07

did you check your ignitor?

Former User

Code 15 is preventing VTEC from engaging.

NHswaps13203

ignition control module/dizzy

civic89si666

ok that wiring diagram was very helpful, now i just need to figure out where in my wiring that green adn yellow wire turns into the two reds at the ecu. ima have to try it tomorrow

Former User

Note the second diagram showing that the two Red/Grn wires pin to A21 and A22 of ECU connector A.

civic89si666

ok so i have power to the coil, are the red and green wires the ones that tell the distributor to send spark to the plugs? i need to fix this by the end of the day

civic89si666

plus the wiring daigram says theres two of those red/green wires, i only have the first one hooked up in my ecu pin

civic89si666

ok so im going to repin that one connector on the ecu, if this doesnt work i dunno what to do. im completely stumped