Installing RC 440's - Is polarity Important?
12-30-2001, 06:15 PM
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Installing RC 440's - Is polarity Important?
I am hooking my Hondata back up in my new(er) ride and was wondering if it matters what wire goes to what side of the injector?
It is in a 98 GSR but the injectors are OBDI style, so I am splicing ends cut off of a OBDI harness onto my 98's. On the 98 there is a common yel/blk wire coming from each injector which the scematic tells me all go back to a common ground. But on the 91 conectors I got there is a common red/blk on all four but on the oppostite side of the conector.
SO... Does it matter which way the wires are hooked up or not. Should I just splice them so the corosponding wire goes to the same side on both conectors?
TIA.
It is in a 98 GSR but the injectors are OBDI style, so I am splicing ends cut off of a OBDI harness onto my 98's. On the 98 there is a common yel/blk wire coming from each injector which the scematic tells me all go back to a common ground. But on the 91 conectors I got there is a common red/blk on all four but on the oppostite side of the conector.
SO... Does it matter which way the wires are hooked up or not. Should I just splice them so the corosponding wire goes to the same side on both conectors?
TIA.
12-30-2001, 09:14 PM
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Re: Installing RC 440's - Is polarity Important? (Turismo)
Just for saftey's sake I decided to splice my RC's into my 98 Civic the way they were from factory, I don't know if it's necessary pser-se, but the way I figured it, why thake the chance?
10-05-2006, 11:01 AM
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Re: Installing RC 440's - Is polarity Important? (MackSpeed-616)
I did exactly the same when installing my RC 310s, same side to the same side. Ground to the right wire on the OBDI clip looking from the exhaust side of the engine. Just received a call from the dyno shop (InlinePRO, Springfield, VA) that my injectors are wired backwards. The polarity matters apparently. When the ECU sends the impulse to open the injector, it closes instead and vise versa. Why does OBDII has all in the reverse order, why RC don't mark their clips as to + and - and why isn't there much attention devoted to such a fact when a lot of people upgrade to OBDI clips from OBDIIa/b remains a mystery to me.
10-05-2006, 11:23 AM
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Polarity does not matter at all. I have intalled many an injector from Supras to Mustangs and back again and have yet to worry about which wire went where.
Either it doesn't matter or I am the luckiest bastard ever.
Either it doesn't matter or I am the luckiest bastard ever.
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10-05-2006, 11:35 AM
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Re: (Jay_Sensing)
You are the luckiest bastard, mate. I just called RC directly. They said to be consistent with the factory wiring (which I was, but still didn't get lucky) and what's most important "The polarity matters". Imagine that you sending electric current through the coil in the opposite direction. It's going to affect the operating capabilities. Still, the question is why don't they mark + and -? Beats me, mate.
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