I assume you mean the fuel cutoff switch. The switch is in the trunk next to the driver side taillights. It's under the carpeting. You'll see the red push button on top.
The diagrams for the wiring of the ignition switch on a 1990 Ford Mustang 5.0 can be found on a website called Sbf Tech. Many of the other wiring diagrams for the 5.0 can be found there also.
The 1990 Ford Mustang 2.3L SOHC had 88HP
Where is ac low pressure service port on a 1990 ford mustang
The switch to operate the horn on a 1965 Ford Mustang is located at the center of the steering wheel.
no
How do you reset the fuel shutoff switch on a 1995 Ford Mustang GT?
It will bolt in, however, you will run into problems with the onboard computer. You will have to reprogram, or maybe even change it.
According to my Chilton's Auto Repair Manual : A 1990 Ford Mustang has a ( 15.4 U.S. gallon gas tank )
The fuel pump shut off switch is located on the left side of the trunk behind the trunk liner ( according to the owners manual )
Should drop right in...same engine.
The 1990 Ford Mustang 5.0 liter V8 engine is rated at ( 225 horsepower from the factory )
If one requires a power window switch for a Ford Mustang this part is often available in the parts department of a local Ford dealership. One can also find this switch on eBay and American Muscle.