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Re: my efi 15 fuse is blowing on 93 camry
Did you do after markert radio if you did sounds like you didint ground out the black wire and that do it to you i did this when i was a kid my first car.. If this it you need ground out black wire on metal to the car
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www.autozone.com/repairinfo/.../repairGuideContent.jsp?page... AutoZoneBoth band adjustment screws are located on the left side of transmission, the ... 13: Automatic shift control adjustment-1989-93 vehicles with the 3.8L engine .... Ex. 04 Camry Battery See More Examples ... Explorer 4WD 4.0L EFI SOHC 6cyl; 2001 Toyota Corolla 1.8L EFI DOHC 4cyl; 2004 Infiniti M45 4.5L SFI DOHC 8cyl.
if there is no shorts, rig a amp meter in series in place of the fuse, if it reads around twelve or more amps some thing else may be wired into the circuit , if the reading is very high there may be a short to earth some ware.
It is not related to car being cool down , I think you are having ignition switch on . The EFI fuse goes directly to the contact switchin the EFI relay. Maybe try removing the EFI relay, turn the ignition to ON, and see if the fuse blows.
Doing this, the car won't start, but it might give you a clue as to where the short circuit is located. ... Check the fuse/relay box next to the driver side fender in the engine compartment.
Below is the location of what I believe you are looking for. I also included a picture of the location of the terminals for the FP & +B on that connector. Below that picture is the location of the fuse panel that the EFI fuse and relay are located. Below that picture is a diagram of the fuse layout with descriptions so you can locate them in that fuse panel. Now there is also an opening circuit relay that the FP circuit goes through. The EFI relay also depends on this relay. In the last picture is the location of that relay. Now exactly sure if this is what you are looking for or what problems you are having but I believe this is the information you are looking for.
There is only ONE reson why a fuse blows: Something is overloading the circuit and drawing more amperage than the fuse is designed to handle. This is what is known as an "overload" or a "short circuit".
If after reading these two articles, you think you would like to try your hand at tracking this down and fixing it yourself, and you are sure you have the correct equipment (as listed in the articles), let me know and I will help walk you through it.
Are you sure it's running when cranking? It should have come on when key turned on. This is for camrys up to year '91. It may apply in your '95, also. Check the 7.5 amp ignition fuse and the 15 amp EFI fuse and the EFI main relay, all located in the fuse box next to your battery. There is also the circuit opening relay tied in to fuel pump operation. It is usually found under center of dash. It is usually not the problem, but it is part of the checks for fuel pump operation. If your car has a " check connector" or "service connector" (also called a fuel pump check connector) under hood on driver's side near the firewall (a little 1 inch cube with a cap on it), then bridge terminals +B and Fp with a jumper wire. Turn key to on (don't start car). The pump should come on. Listen for fuel return noise from the fuel pressure regulator, and verify pressure in hose from the fuel filter. If nothing, check those fuses above. Here is how power runs to pump: Battery to 40 amp main fusible link-to 15 amp EFI fuse-to EFI main relay-to circuit opening relay-to fuel pump-to ground. Ignition switch and the computer (ECU) work the relays to pass power to pump. Hope this helps some, Randy. Good luck.
You might also check the AM2 fuse in the engine compartment fuse box. There is a "noise supression" capacitor inside the distributor that shorted out on my '93 camry. You can replace the capacitor for about $10, but the capacitor is kind of hard to get at. I had to remove the distributor to get at it, but if you are a good mechanic, you can probably repair it in place.
With the AM2 fuse blown, I was getting crank, but no fire.