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Old 06-20-2008, 11:56 PM   #6 (permalink)
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Join Date: Jun 2008
Location: Stuart, FL
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SeeOurWrecks - '91 Honda CRX Si
90 day: 35.59 mpg (US)

Accord_Inspire - '93 Honda Accord EX
90 day: 24.56 mpg (US)
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Originally Posted by Whoops View Post
I don't know about the VSS, but on the injector, it runs off of what you might call negative logic. The power to the injector is supplied whenever the fuel relay turns on. The ecu provides a signal which grounds the other side of the injector when it turns the relay on.
So should I be running a ground? what completes the circuit, ground to ground? I'm not proficient in electronics, I have an amateur knowledge.

Originally Posted by dcb View Post
For VSS, if you can find a picture of the ECU plug online I might be able to point out the speed signal, my cryptic docs indicate it should be Pin 8 on a 24 pin connector, maybe yellow/white, or orange, or yellow/blue?

For the injector, you unplug an injector and turn on the ignition (not the engine) and use the injector wire that DOESN'T have 12 volts on it.
VSS, it was a bright orange wire

injector, to test my manual says use a1 for injector 1 and a23 for ground. But using a23 would not give off a signal just a ground? Am I wrong?

It does say to measure for battery voltage so it is the one putting out "12v"

I do use an injector resistor in this car if that makes a difference

This pic is for an integra but it should be exactly the same as the OBD1 accords

can't find a pinout, but I'll keep looking

*EDIT*found one

Last edited by accordaffair; 06-21-2008 at 12:34 AM..
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