Mechanics

TBI FUEL PRESSURE SENSOR

1991 Pontiac Sunbird • 4 cylinder FWD Automatic • 180,000 miles

I amhaving trouble with flooding TBI carb. Bottom is covered with raw fuel.
checked injector with ohm meter ok. Getting 12v to injector when key on.
dont see pulses to injector.
is my fuel pressure sensor on side of carb related? I get 6v on one pin of sensor.

needing help.

thanks Vern (know what I mean)

Avatar
Vern1939
November 17, 2010.



No injection pulses check the injector ground driver circuit on the computer-fuel pressure regulator leaking/fuel metering body-

Rasmataz
Nov 17, 2010.
I need a new pressure regulator probably huh?
Will get one and put it in to seee how itgoes.
Thank you

Vern

Tiny
Vern1939
Nov 19, 2010.
Installed a throttle body fuel sensor

still flooding

will check voltages

Tiny
Vern1939
Nov 20, 2010.
Ahhh it could be a broken o ring on injector just something to check

Tiny
Wutsupy
Nov 20, 2010.
It could be a broken o ring on injector. Just a easy thing to check

Tiny
Wutsupy
Nov 20, 2010.
Will check again "OHHH" ring (; }) again, looked good first examination.

Still looking for illustration. Thanks whats up.

Tiny
Vern1939
Nov 21, 2010.
Hey rasmataz, where is the driver and how do I check it? Voltage to be seen, etc.

Thanks vern1939

Tiny
Vern1939
Nov 22, 2010.
Wow, changed ohh rings, gas everyplace

voltage to injector 12v (key onl only) g etting sprayed iwth gas
voltage to tbi sensor (new one) key on 6 vol at number two pin *left most pin when viewed from tnd of wires.

Sensor pins 1
2 3
HHHHHHHHHEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPP

THANKS VERN1939

Tiny
Vern1939
Nov 22, 2010.