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  #1  
Old 11-28-2012, 03:02 PM
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Gpr

Just put in a stancor relay in because I though my old relay was dead. It is in now but does the same thing, no voltage to the gp side when the key is turned on..... My question, does it always call for gp's even if the motor is hot? I had just got done driving it when I put it in and haven't had a chance to let it cool off good yet. If it does always call for plugs what could it be? The red wire energizes with the key on. Thanks.
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Old 11-28-2012, 03:35 PM
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First, NO, it does not use the plugs when the engine is warm (despite the WTS Light).

Next, understand how the relay works. One of the sm terminals will have 12v in it with the key On (BOTH sides will show 12v with the wires connected, only one disconnected) The other wire is connected to the PCM, and controlled, by supplying ground to it.

So, you'll see One big wire with power (the supply) and other has power when the plugs are activated by the PCM (load) and powered independently of the WTS Light. That is, they're ON for Much longer that the light is when cold, and Not ON, even though the light is, when warm. The two small wires are what activate the relay, as current flows through them, and one side is supplied with they key and the other supplies ground, to complete the circuit, through the PCM.

BUT, when testing the sm terminals YOU are supplying that ground path (through the meter or light) just not enough to "flip" the relay. They then both appear to have 12v in them.

For proper testing, remove the small wires so you can see which-is-which. Then, you can supply Real Ground (not through a meter or light) to activate it and see where you have a problem, if any...
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Old 11-28-2012, 04:30 PM
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Ok I will try it when it gets a chance to cool down, thanks for the info.
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  #4  
Old 11-29-2012, 05:00 AM
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All checked out good this morning on a cold motor. Thanks.

Now if my hydra chip would hurry up and get here!!!!
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