2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

rewiring electical in non turno

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Old Dec 12, 2006 | 04:37 PM
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rewiring electical in non turno

Is main relay and fuel pump relay needed?, can they be rewired without relay (just power, ground, fuse)
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Old Dec 12, 2006 | 05:00 PM
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also can some1 explain to me how to rewire ign coils, looking at manual, 3 wires are going to ecu from trailing, and 1 from leading. (simple so far) then you have b/y wire from main relay to trailing and leading(from leading split into condenser). is b/y power wire? so i need to keep and use main relay? What is up with this condenser?
please give me some assistance.
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Old Dec 12, 2006 | 07:09 PM
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why do you need to rewire your ignition system? if they work, leave them alone.
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Old Dec 12, 2006 | 07:18 PM
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The Wires Where Melted
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Old Dec 12, 2006 | 07:25 PM
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Then either, get a replacement harness or cut out and replace each wire one by one. The keyword here is to replace. Dont go bypassing things. for example, having relays is a safety measure so that you are not exposed to dangerous voltags/amps.

Going through your previous threads, you dont seem to have a handle on things yet. You macguyvering the electrical will probably end up cuasing another short or worse, a fire.
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Old Dec 12, 2006 | 08:18 PM
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WHAT IS THE PERPUSE OF main relay and fuel pump relay?

are they just there to regulate voltage from 14.4 to 12v?, so that ecu and fuel pump wont burn.
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Old Dec 12, 2006 | 08:20 PM
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The relays are required.

And your bump rx7vadim has been deleted. Bumps are forbidden here in the 2nd gen section and I will start deleting your threads all together if you can't figure that out.
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Old Dec 12, 2006 | 08:26 PM
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Thread merged. Only start one thread on a subject per member.

The main relay powers many of the circuits that must be on while the car is running. Without it, things like the injectors and coils would always be powered.

The fuel pump relay is so you don't burn out the wiring as well as only allows the fuel pump to be on during crank and durning run. It does nothing to change the voltage on a non turbo.
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Old Dec 12, 2006 | 08:42 PM
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so they could be bypassed with switches
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Old Dec 12, 2006 | 08:48 PM
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"from leading split into condenser" the leading and traling coils have b/y wire that goes to condencer. is condencer nessacery? where is the location of this condencer?
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Old Dec 12, 2006 | 10:54 PM
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leave the relays in!! and no they SHOULD NOT BE BYPASSED using switches. that will expose you to directly to battery voltage.


Now if you do not understand that, start looking forward to getting electrocuted and maybe a nice electrical fire.
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Old Dec 12, 2006 | 11:03 PM
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so the relay lowers amps? i always had trouble remembering function of relay
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Old Dec 12, 2006 | 11:14 PM
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A relay is a high current electronicly controlled switch that often is used as a circuit isolation device. The main relay is a 70 amp contact device, that would be difficult to ever replace with an ordinary switch (well alone the lack of isolation when you do).

A condensor (often called a capacitor in most of North America) is a surge and voltage stabilization device as well as acts like a short term battery in some applications.

So no, you can not remove any of those items and have the car run correctly.

As far as lowing amps, only a device in the circuit can lower the available amps of the whole circuit, but can do nothing for lowering the total available amps.

And frankly, the concept that you are removing things that you don't understand how or why they work is just crazy.

Originally Posted by rx7vadim
so they could be bypassed with switches
No, how would you work a switch to make the fuel pump active when cranking and turn off if the engine does not start, and stay on if the engine does start???
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Old Dec 13, 2006 | 02:04 AM
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^ what he said, again relays are like a switch, but they do not allow direct current to flow through a designated circuit, bypassing relays with swtiches is just asking to remelt all those wires you decided to fix with switches...condensor is also a vital ignition component it acts as a buffer that takes the brunt of the ignition voltage after the coil windings are turned off and the voltage is induced, without it, large surges of voltage would be back fed through the ignition system, causing even more problems, fried ecu's, etc..

dont **** with it,...we are just trying to save you alot of headache...

replace what needs to be replaced wires etc, dont go modifying it..


hope that helped..

Dave.
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Old Dec 13, 2006 | 08:07 AM
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thanx
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