Fuel Injector Kill Switch: 1990 Honda CRX HF (How To W/ Pics)
I'm not the "How To Guy" or anything, but hopefully this will be of help.
Purpose: A switch to immediately kill the injectors while keeping lights, signals and instrumentation.
Decide where you want to place your switch.
I wanted mine to be super accessible, but not super noticeable. I wanted it close to my right hand and close to the shifter, but I didn't want to cut a hole in something important. I preferred it be on something I could easily replace if I botched it.
I chose the small access cover under the emergency brake lever:
Once you've chosen the perfect spot it's time to move on to the PCM-FI Relay.
Remove panel under steering wheel to open up the area a bit:
Here's a good link showing how to gain access to and remove the PCM-FI Relay:
PGM-FI Main Relay problems and fixes
This is what you're looking for:
After talking with several people I decided to wire my switch into the ground wire of the PCM-FI Relay. I absolutely hated cutting into the wiring harness, but I couldn't think of a way to avoid this.
Put the PCM-FI Relay back where you got it, (no swearing allowed) along with the hood release and button up the dash.
Here's where the wires come out under the emergency brake lever:
I wanted the switch on my side of the emergency brake lever:
I'll update this thread with my thoughts after I've driven for a few days.
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1990 CRX HF
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