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

help with fuel cut switch

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Old Mar 28, 2004 | 09:59 PM
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help with fuel cut switch

hey guys ive tried searching but maybe someone can help me.

what is the best method to install a fuel kill switch to replace the fuse pull method when my car floods?

is there a better method than connecting an on/off switch directly to the fuse box under the hood and running the switch to inside the car?
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Old Mar 28, 2004 | 10:31 PM
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What year car do you have? If its a series 5 ('89-'92), then you can kill the fuel delivery simply by holding the gas pedal to the floor while you crank the engine.

For S4 cars, you have to tie a switch into something for the fuel pump. There is a relay under the dash near the steering column. Check the FSM for the location of the wire that comes out of the relay and sends power to the fuel pump circuit. However, if your car is flooding, you should get it fixed instead of making permanent mods to the fuel circuit.
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Old Mar 28, 2004 | 10:38 PM
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Assuming you have a S4 (helps if you tell us) look under the dash by the steering column. You'll see a relay with a yellow 5-pin plug. Cut the middle wire (black/white) and wire the switch into it.
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Old Mar 28, 2004 | 11:06 PM
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rx7gx, I just pm'd you with info.
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Old Mar 28, 2004 | 11:14 PM
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I learned from experience- forget the fuel cutout switch, fix the injectors. when you let the engine die from fuel starvation it tends to varnish up the injectors over time...
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Old Mar 29, 2004 | 01:55 AM
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thanks a lot guys for the quick replies, i appreciate it very much. yeah i have an s4. the fuel cut switch is for security as well, but mainly a temp. mod till i have more time to take the car in to a shop or clean/fix the injectors myself.
anyway i should be able to figure out how to rig one up now. thanks
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Old Mar 29, 2004 | 04:05 AM
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Buy new injectors or send them to RC Engineering to have them cleaned..
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Old Mar 29, 2004 | 04:58 AM
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why do so many people refer others to RC engineering when www.cruzinperformance.com will do the same job for less than half the money?
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Old Mar 29, 2004 | 01:24 PM
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Cruzin performance = DA MAN!!!
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Old Mar 29, 2004 | 07:00 PM
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After you get your injectors back from them, do you need to put any more O rings on the injectors? Or are they ready to put back in the car?

Cruzin looks like they do a great job on the injectors. That was some good info.

Thx
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Old Mar 29, 2004 | 07:05 PM
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When I got my injectors back, they had all new o-rings, etc. They were ready to install.
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