I wired down everything as shown on one of the posts. I turned off the switch and vroom..the car was still running. DOES ANYONE KNOW WHAT I AM DOING WRONG? Do i need to keep the car running until all the fuel is gone or what? The gas level dropped all the way to E when i did the fuel cut off switch but it was still running. WHATS WRONG !! I WOULD REALLY APPRECIATE IT IF I GET SOME HELP THANKSS !!

 

If you show us pictures, it would help. What wires did you cut, and how did you connect your switch? Did you use a Relay?

The post makes it sound like you made a Fuel Level Indicator Kill Switch. If you give us detailed info (or a diagram) of the wired components, then we can help more.

Help us help you
JasonGhostz

 

THE WIRE I CUT FOR MY 92 CIVIC WAS THE YELLOW ONE. WITH SOME GREY ON THERE. THERE WAS ANOTHER YELLOW WIRE WITH GREEN COMING OUT OF THE FUEL PUMP. IO WAS TOLD THAT EG FUEL PUMP WIRES ARE ONE F THE YELLOW ONES. OR ARE THEY WRONG? SHOULD I TRY THE OTHER YELLOW WIRE ?

 

LOL a "Fuel Level Indicator Kill Switch" like any other layer of a security system, it's there as a final layer to prevent theft, crook gets car fired up, sees it's out of gas, goes and finds another car.

Sorry, had to do it, anyway, as mentioned you have obviously mis-wired something.

Instead of messing with the fuel pumps power wire, why don't you just install a small, [1A] SPST switch on the ground wire for the injector relay, it will shut down the injectors, fuel pump, ECU/ECM and a few sensors, it's a low current ground, [less then 200mA], or if you just want to shut down the fuel pump install the switch on the ECU/ECM control lead to the fuel pump relay, [also a low current ground]

Both relays are in the PGM-FI Main Relay, not other relays are needed, and your dealing with a low current neg.(-), [ground] not a high current pos.(+), [12V+].

If you really want to use a relay and install it on the 12V+, [power] line of the fuel pump install it so at rest it grounds the fuel pump lead, this will prevent a car thief from popping the back seat and powering the fuel pump directly. 94

 

http://causeforalarm.thecarthi....html

Based on the above, your Fuel Pump Wire should be solid Yellow. It is part of the Floor Harness, and runs along the Driver's side running board. I don't have a 92-95, but if you read that site and the stickys at the top of this forum, it will help clear things up.

You should use a Multmeter to verify what wire to cut. If you don't have one, AND you don't have a Service Manual, then you're pretty much drawing straws.

Basically, this switch should have nothing to do with the Fuel Level Indicator... Reconnect the wire you cut, and try the other wire if you want. Just stay away from the yellow-taped wires!!!

Good Luck
JasonGhostz

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">LOL a "Fuel Level Indicator Kill Switch" like any other layer of a security system, it's there as a final layer to prevent theft, crook gets car fired up, sees it's out of gas, goes and finds another car. </TD></TR></TABLE>
I was thinking the same thing...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdm12345 &raquo;</TD></TR><TR><TD CLASS="quote">Do i need to keep the car running until all the fuel is gone or what?</TD></TR></TABLE>
Even better... Make it so the only way they can steal it is by towing/pushing!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">Instead of messing with the fuel pumps power wire, why don't you just install a small, [1A] SPST switch on the ground wire for the injector relay...</TD></TR></TABLE>
Based on my assumption that he made a Fuel Indicator Kill Switch, I held back from suggesting this one... For a (former) first-timer like myself, I found it a lot more involving than "simply" installing a switch along one of the PGM-FI MR's wires, especially if you want it to look "good". I found it particularly hard since there's not much room to work with back there, and there were a lot of little things that experienced guys take for granted... Like removing panels without damaging them, NOT spending 10 minutes staring at the wires that were just connected, etc...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">If you really want to use a relay and install it on the 12V+, [power] line of the fuel pump install it so at rest it grounds the fuel pump lead, this will prevent a car thief from popping the back seat and powering the fuel pump directly. 94</TD></TR></TABLE>
So, just to make sure I understand correctly... (Using a SPDT) Dash side Power lead on 30, Load side (Fuel Pump) on 87, Ground on 87A and 85, and a Fused IGN lead to 86 / or a jumpered lead from 30 to 86?
Assuming the above is correct... Can 87A and 85 share the same Ground Point? Do I need any Diodes if they can? Also, if I wanted to install a blocking Diode accross 85 & 86, can I do so anywhere along the wires' length (before they connect to any other wires; as opposed to the male spade terminals of the relay since the 87A terminal kind of gets in the way of doing this)?

Thanks!
JasonGhostz

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">Instead of messing with the fuel pumps power wire, why don't you just install a small, [1A] SPST switch on the ground wire for the injector relay, it will shut down the injectors, fuel pump, ECU/ECM and a few sensors, it's a low current ground, [less then 200mA], or if you just want to shut down the fuel pump install the switch on the ECU/ECM control lead to the fuel pump relay, [also a low current ground]

Both relays are in the PGM-FI Main Relay, not other relays are needed, and your dealing with a low current neg.(-), [ground] not a high current pos.(+), [12V+].

If you really want to use a relay and install it on the 12V+, [power] line of the fuel pump install it so at rest it grounds the fuel pump lead, this will prevent a car thief from popping the back seat and powering the fuel pump directly. 94</TD></TR></TABLE>Where is the ground wire for the injector relay and how does it look like? That sounds like an excellent idea but i do not know where and how it looks like. ALSO where is ECU/ECM control lead to the fuel pump relay

 

BY THE WAY ... WHERE IS THAT SOLID YELLOW WIRE LOCATED IN MY 92 CIVIC HATCH IF I WANTED TO DO A SWITCH FOR THE FUEL PUMP POWER WIRE I SEARCHED FOR IT BUT COULD NOT FIND IT. ALL I FOUND WAS YELLOW WITH STRIPED WIRES AND NOT A SOLID YELLOW WIRE. IS IT BEHIND THAT PLASTIC COVER ON THE DRIVER'S SIDE

 

Stop typing in all caps. This isn't an AOL chat room.

You MUST verify the wire with a multimeter. If you don't verify it, then you aren't following the instructions so don't claim that you are.

 

To help out, Some cars have two ground wires on the main relay. Both are plugged in to the same pin. You need to cut both.

 

Yea, you got to stop YELLING.

Both wires can be found at the PGM-FI Main Relay, [both the fuel pump and injector relays are in the PGM-FI Main Relay] the injector relays coil ground is black, [as mentioned there may be 2 black wires on the same terminal, "daisy chain ground"], not sure what color the ECU/ECM control led for fuel pump relay is on a 92 Civic, the relay is located just above and behind hood release.

BTW don't make the connections at the plug unless you are depining and adding wire that you can hide in the plug harness, trace the leads back a ways in the plug harness so the connection can't be easily seen/found. 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">

Both wires can be found at the PGM-FI Main Relay, [both the fuel pump and injector relays are in the PGM-FI Main Relay] the injector relays coil ground is black, [as mentioned there may be 2 black wires on the same terminal, "daisy chain ground"], not sure what color the ECU/ECM control led for fuel pump relay is on a 92 Civic, the relay is located just above and behind hood release.
</TD></TR></TABLE>

You mentioned you have a 92 EG. If you want to try what FCM is talking about, look at this thread, the diagrams I posted there are for your ride. (unless you own a VX) As others have mentioned, if you do it be clever about it. The kill is pointless if a thief can find it just rooting around w/ a flashlight for 5 minutes.


https://honda-tech.com/zerothread?id=1978712

One thing to note as far as the black and green/yellow ground kills--both of these leads off the PGM-FI MR have two identical wires coming out of each numbered pin on an EG, not one. ('daisy chain' as fcm mentioned) This isn't really represented clearly in the wiring diagram.

Not to threadjack...but does anyone know why so many of the wires off the PGM-FI have this daisy-chain setup? I was thinking maybe the production line rolled identical semi-assembled civics up to a certain point before they were split off to become variants (DX-EX vs VX/CX). I don't think that's the reason though--the VX wiring is not that much different from the EX from what I can see in the ETM.

Anyways,
Good luck


Modified by NHBsi at 9:41 PM 5/25/2007

 

thanks for all da help .. got it done already ..BTW what are you talking about "suspendedhatch" .. i can talk any way i want i didnt know it was against H-T rules to type in all caps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdm12345 &raquo;</TD></TR><TR><TD CLASS="quote">BTW what are you talking about "suspendedhatch" .. i can talk any way i want i didnt know it was against H-T rules to type in all caps</TD></TR></TABLE>

wow

That may be true to some extent, but it is hard on the eyes and generally just plain annoying, especially to people who are on the forums a lot. If you are respectful around here (even when others are not), you'll find that people are a lot more willing to share thier hard earned know-how...

Just a bit of advice if you are planning on posting regularly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">
BTW don't make the connections at the plug unless you are depining and adding wire that you can hide in the plug harness, trace the leads back a ways in the plug harness so the connection can't be easily seen/found.</TD></TR></TABLE>

I tried tracing them back, but after about 12-15" the wiring gets bundled into a larger group of other wires and it was difficult to follow the black ground wire.
I have a 00 Si so my main relay is on the passenger side, behind the glove compartment. Are you aware of which way the ground wires should go? (into the firewall or back towards the ECU?)

 

If there is only one black lead on the pin then it goes to chassis ground at one of the dash harness ground points.

If there are two black leads on the pin, one of them goes to chassis ground and the other is a daisy chain ground for something else, I have never checked to see what else the ground lead is for as it makes no diff. for a kill switch on the PGM-FI Main Relay.

On my 94LS I depind the terminal, "opened" it and removed the ground lead, recrimped, [and soldered] a new black lead, [same gauge] long enough to reach where I hid my switch, [running it into the stock dash harness] and grounded it there also, then I tucked the original ground back into the harness it came from. 94