basr5

Anyone know where I can find a kick panell fuse box cover diagram that tells what fuse is which ? Or does anyone know where the fule pump fuse is ? The 1985 4runner is turning over but not getting any fuel I have tested the fule pump it works , and my brother vaguely remembers taking some fuses out to use for another project , thanks for any help

Terrys87

iTrader: (1)

Im sure they all the same. This is off of my 86 or 88, I probably have one on my 85 and will check and see if it is identical. Do you know if it is on your fuel side/injectors or firing side?


Some of the steps I went thru looking for my problem.

Copied...
I am going to post all of my results so as to keep track of them here. Keep suggestions coming. I am studying what I can for more ideas.

Still need to:
Get a noid light.
Ohm wires.
Try another ECU.

Injectors looked clean. I cant see all 4 failing at once.
Swapped with spare AFM. Will run more test if suggested, but it will run on starting fluid.
Swapped coil and igniter. Will run more test if suggested but it will run on starting fluid. I feel the ignition is working.
Fuel pump is pumping. Also jumpered Fuel Pump and it would operate.
Changed Fuel Filter.
Ohmed out Main Relay. Mine you can hear and feel the relay operating. Ohmed out at 74, book has 60 +/_ 20. Two other relays had same results.
Visual and metered all fuses under hood. Will do kick panel later.
Have checked all grounds and they are good.
Checked Solenoid Resistor. Book says 2-3 Ohms, Mine was 3 Ohms same on another Solenoid Resistor. With key on I have 12 volts, key off I have 0 volts. I believe this is correct.
I trust my soldering and removed crimps in harness some time ago.
The Solenoid Resistor passed it test. So I will be giving some of the suggestions you guys have mentioned a try and also start looking into my fuel regulator and dampener. I have been looking at the Haynes and the FSM as well. I like having information from previous problems as a reference as to where to look in the manuals. That is my reference page in the back ground. It actuallys saves some time.
Here is how you do a Fuel Pump Bypass on the 85/86.
Jumper wire the Yellow Plug on Drivers side. ( Jumper wire should be in both contacts for testing, I just didnt have it in for picture purposes and mostly a referece for me at a later time.)


With the jumper wire in and the key turned on, I was able to fill the cup up in about a minute or so. The return hose goes to where my finger is pointing. This is the metal line that I suggest taking an air hose and seeing if it is clear all the way to the fuel pump bracket. I have seen this line and the "J" line on the bracket clogged several times.




Still chugging along on my no start issue.This comes off of the Fuse box and provides power to the Solenoid Resistor. I tested all fuses under the hood, even the 80 amp fuse, with a multi meter just to make sure I hadnt missed one by doing the visual check. I am still not sure where power is sent from the fuse box but it is 12 volts when the key is on and 0 volts when key is off.


I also checked my Main Relay and 2 others that I have as spares. All 3 checked in at 74 ohms. The tolerance is 60 +/- 20.


My $3 noid light. I wasnt able to find one anywhere and this worked great. It flickered each time I cranked it. I just couldnt get any pictures of it lighted. The LED is polarity sensitive. If it doesnt light one way, swap the leads around.


I used the 12 Volt red one. Radio Shack Part Number #276-0270

Here is a diagram of the electric system.


Steps I did to fix my injectors. I will try to make this from easy to hardest steps. All pages I am refering to are from the Haynes manual. I did download a FSM for more info.

1. I tried Starting Fluid just to see if it was electrical or fuel.

2.Check the Ground on the far rear of the intake nut.

3.Check all grounds. https://www.yotatech.com/forums/f116...-guide-194413/

4.Run Resistance check on Coil.
Haynes Pg 5-3


5.Check Solenoid Resistor. Pg 4-10 13.22b

6.Check EFI Main Relay Pg 4-9

7.Run Resistance checks on Fuel injectors. There are atleast 3 different types of injectors. Do Not put wrong ones in. Could ruin computer. Pg 4-2
Link to different injectors.. https://www.yotatech.com/forums/f116...ectors-127606/

8. I added a ground to the ECU. Will post a pic later. Link for mor info..http://api.viglink.com/api/click?for...13329207905461

9.Open wire harness and replace factory clips.https://www.yotatech.com/forums/f115...e-help-178975/

This is what I did, there is still things that can be done using a noid light and voltage checks. I didnt have to, so not much help there.

basr5

I believe it's on the firing side , but I'm not 100% sure thank you terry, I'm just trying to get the file pump pumping

Terrys87

iTrader: (1)

I am not the best at diagrams, but it looks like the fuel pump is on the 15A EFI fuse.