Where is the secondary fuel pump circuit?

[SRGUYINDAVIS]

Hi all,

I have a 1990 SHO. When I try to start the car, it turns over and starts but then quickly sputters out and dies.Currently, it is throwing code 96. Which the book says could be:

1. Fuel Pump secondary circuit failure--Battery to ECA
2. High speed fuel pump circuit open.


Where can I check the circuit at? I am not even sure where on the car the circuit is.


Any help would be appreciated.

Thanks, Glen Anderson

 

[SRGUYINDAVIS]

Anyone?

 

[justin mccluske]

check fuel pressure could be bad fuel filter or pump

 

[SRGUYINDAVIS]

its is something electrical, like a blown fuse in the secondary circuit because it is reading as open...

 

[Fourcats]

There is a "something" inside the trunk, left side, behind the panel, that shuts down the fuel pump if you are hit. Ours has been bypassed.

 

[SRGUYINDAVIS]

how do you reset it?

 

[NotSoSlowSHO]

yes, in the trunk, on the drivers side is what is called a Fuel Pump Inertia Switch. In the case of an accident, it will cut power to the fuel pump.

Just press the buttom to reset it, if it works. They do fail.

A simple way to check the curcuit is to bypass the Inertia switch alltogether. Just remove the switch, and install a jumper.

 

[SRGUYINDAVIS]

where is the ECA loacted on a gen1?

 

[NotSoSlowSHO]

what is an ECA???

 

[SRGUYINDAVIS]

engine control assembly

 

[NotSoSlowSHO]

is that another name for the EEC?

The EEC is located behind the glovebox. Held in by a bolt on the engine side of the firewall.

 

[SRGUYINDAVIS]

i don't think so, when reading the CHilton, they refer to EEC and ECA seperately...


thanks for all the help so far guys.

 

[Jaz2099]

Do you hear the fuel pump when you turn the key? Did you check fuel pressure?

 

[SRGUYINDAVIS]

no, no fuel pump when I turn the key...initally there was pressure, but now there is nothing.

 

[shoebilly]

Check the relay box mounted up by the radiator, check the connections near where the radiator fan plugs in to the harness. A wiggle test here with the key on my reveal a bad plug in connection.

 

[SRGUYINDAVIS]

anyone know where fuse link J is located on the 1990?

After looking over all the wring diagrams, I am pretty suree that is what is gone...

thanks for the advice about the plugs, I checked that and still nothing.