good day everyone!! Just two wires I'm confused about
good day everyone!! Just two wires I'm confused about
Well long story short, I found my 92 RS in a field in great condition. It has the 305 TBI in it and only 151k miles. I've spent $350ish and have everything maintenance wise updated. There were 5-8 wires chewed by mice and I've figured out all but two. Along the pass side there is an orange wire singly loomed with a female connector on the end. That one and a green/white wire along the rail on pass side near starter. That one's end is missing. If you could tell me exactly where they go that would be greatly appreciated. Thanks guys
Steve
Steve
Re: good day everyone!! Just two wires I'm confused about
ok, I did some searching and found this post from a while back:
"The green/white wire at the relay is what primes the fuel pump - it gets it's signal from the ECM (which would be gone). This 'prime' only lasts a few seconds, and then there's no voltage to the fuel pump until the car is started. With a carb, there's no need to 'prime' the fuel system, since there is fuel in the carb bowls - it ill start, and the pump will run off the OPSU until it's shut off.
The fuel pump gets a steady voltage directly from the battery through the Oil Pressure Sending Unit (OPSU). After the car is started, the OPSU supplies the constant voltage to the fuel pump until the engine is shut off.
UNLESS - the car sits without being started for more than a week or so - after such a time, the car will start, but it's hard to get enough fuel to the carb to refill the diminishing fuel in the bowls in time. In this situation, you might want a manual switch to run the pump for a few seconds BEFORE you start the car, in order to clear the air from the fuel lines and get a consistent flow of gas to the carb. "
I need to know where this wire would be located on my 305 TBI. The harness in which it comes out at is along the top of the passenger rail near the starter. At least thats where it stops. It was chewed by mice. I just need to know the location of where it connects and maybe a pic or two would be great. Thanks in advance.
Steve
"The green/white wire at the relay is what primes the fuel pump - it gets it's signal from the ECM (which would be gone). This 'prime' only lasts a few seconds, and then there's no voltage to the fuel pump until the car is started. With a carb, there's no need to 'prime' the fuel system, since there is fuel in the carb bowls - it ill start, and the pump will run off the OPSU until it's shut off.
The fuel pump gets a steady voltage directly from the battery through the Oil Pressure Sending Unit (OPSU). After the car is started, the OPSU supplies the constant voltage to the fuel pump until the engine is shut off.
UNLESS - the car sits without being started for more than a week or so - after such a time, the car will start, but it's hard to get enough fuel to the carb to refill the diminishing fuel in the bowls in time. In this situation, you might want a manual switch to run the pump for a few seconds BEFORE you start the car, in order to clear the air from the fuel lines and get a consistent flow of gas to the carb. "
I need to know where this wire would be located on my 305 TBI. The harness in which it comes out at is along the top of the passenger rail near the starter. At least thats where it stops. It was chewed by mice. I just need to know the location of where it connects and maybe a pic or two would be great. Thanks in advance.
Steve
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: good day everyone!! Just two wires I'm confused about
Mine is above my oil filter, 1990. The org wire is most likely your under the hood lamp located above the distributor.
Re: good day everyone!! Just two wires I'm confused about
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