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The fuel pressure regulator on a 91 caprice is in the top of the Throttle Body Injector. The back of the injector has a tower type device that is held on by 2 or 3 screws. Just take them off and lift off the mechanism. Then there are a few screws on the bottom that hold together the tower. Take them off and the regulator is the square diaphragm type device. Mine was red. It is only about an eighth inch thick.
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Install fuel pressure regulator on 91 Cadillac Seville?
Yes
Where is the fuel pressure regulator on a 91 ford ranger?
on the fuel rail towards the front of the truck cant miss it
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It is located in the throttle body.
You have a 91 caprice you changed the fuel pump but gas you s not reaching the tbi the relays are good new fuel filter no kinks in lines chould this be the fuel regulator HOW TO TELL NO GAS TO INJEC.?
Replace the fuel filter.
How do you change the fuel pressure regulator on your 91 Pontiac grand prix LE?
pull the upper intake off then the fuel rail off then the pressure regulator is screwed between the 2 rails and the reassemble the way in which it came off
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Replace the fuel injectors and the fuel pressure regulator.
Why does the fuel pump on a 91 Ford F-250 with a 5.0 engine run constantly with the engine not running but the key is in the on position.?
Fuel pressure regulator, or a stuck relay.
Is the fuel pump in the gas tank of a 91 Chevy Caprice?
Probably If fuel injected yes
Why does my 91 Chevy Camaro start when sprayed with starter fluid but not on its own?
Bad fuel pump or fuel pump relay. Maybe a bad fuel pressure regulator. You need to determine if the fuel pump is working.
On a '91 Mazda Miata is the fuel pressure regulater located on the supply end of the fuel rail or the return end?
It is on the return end. Fuel goes into the rail at the front and exits at the back through the regulator.
What is the 91 Pontiac sunbird fuel pressure?
Standard fuel pressure for a 91 Pontiac Sunbird is between 50 and 55 PSI. This is the idle pressure to allow for maximum efficiency of the fuel injectors.
Where is the fuel presser regulator located on a 91 Plymouth colt?
Try on the Injection Rail
