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89-91 injectors hooked to 86 harness..

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Old Mar 17, 2002 | 08:29 AM
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Question 89-91 injectors hooked to 86 harness..

could it be done?

i can get my hands on a near new set of injectors, but they have a differnet connection on them. Could I for say "hard wire" the new connectors on the old harness? Could the 86 computer run them properly?

thanks
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Old Mar 17, 2002 | 09:52 AM
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You'd have to wire around the SOLENOID RESISTOR. Simple enough job there. The injector plugs will not fit but you can buy some more and splice them in. Schematic attached.
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Old Mar 17, 2002 | 09:14 PM
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From: n
The plugs are different, so it's not an easy swap.



-Ted
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Old Mar 17, 2002 | 09:28 PM
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If you are skilled enough to be able to install the injectors (a medium job) then you can easily re-wire them.
You just have to bypass the solonoid resistor..... it's down under the airbox- bbehind the pass.side headlight. It's a small box with a whitish plug and an aluminum cas around it.
One prong/wire is common to all of the injectors, it's the power source, the other pins (4 of them) are to the injectors... just jump the main wire to each of the other ones at the plug, bypassing the resistor...
I beleive this is right!!

The only glitch is that the injectors use a slightly different plug....so you have to get those plugs, and cut off the old ones....
Cheers!

Last edited by Bambam7; Mar 17, 2002 at 09:30 PM.
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Old Mar 18, 2002 | 12:10 AM
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one more thing

is the bottom of injector differnet? The plastic cup thingy (lack of the correct term), those just snap off..

if it's the top metal, things could get intersting

the schematic is just what i needed thanks!
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Old Mar 18, 2002 | 12:40 AM
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wouldnt one set be high impedence and the other low impedence?
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Old Mar 18, 2002 | 12:50 AM
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From: charlotte
Originally posted by Vkdagreek
wouldnt one set be high impedence and the other low impedence?
thats what i thought too
does re-wiring the solenoid resistor eliminate that problem?
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Old Mar 18, 2002 | 09:15 AM
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Don't understand what you mean by SET. They are all high impedence or all low impedence on the factory setup(four injectors). If you just have two high and two low, thats another scenario. You indicate or imply that you have a set(four) of high impedence that you want to put in a low impedence car. Right????
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Old Mar 18, 2002 | 11:04 AM
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set

i meant a set of primaries. though i could go with the secondaries as well but those would cost me more money. I could just rewire the two primaries onto the high impedence wiring, and leave the secondaries on the low impedence couldn't I?
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Old Mar 18, 2002 | 03:25 PM
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Yup.
Just jump the two primary wires at the resistor.. so the resistor is only upping the impedence if the secondaries, and the primaries are not running through it.
Just make sure you get the right wires!!!
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