924Board.org

Paul · Posted: Tue Jan 22, 2013 4:32 am Post subject:

If the car is running well otherwise, the easiest thing to do is to install a push button switch across the wires that are connected to poles 30 and 87 of the fuel pump relay.

Pushing the button will cause the pump to run.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

Brians924 · Joined: 17 Jan 2013 Posts: 35 Location: Massachusetts USA

Thanks again!

I'll have to wait for the hanes manual to confirm, sounds like I have to get behind the fuse panel where the relay is and splice it in there.

now thats gonna be fun to get my fat ass under there!

Thanks!

Brian
_________________
1977 Porsche 924 n/a
2.0 4sp. w/59k

Brians924 · Joined: 17 Jan 2013 Posts: 35 Location: Massachusetts USA

So lets see if I got this straight...

Over riding the fuel pump relay has essentially the same effect as the hot start fix on grounding out the csv? both are forcing the pump to run.

just a choice of which one you want to control.

Brian
_________________
1977 Porsche 924 n/a
2.0 4sp. w/59k

!tom · Posted: Tue Jan 22, 2013 12:37 pm Post subject:

Paul · Posted: Tue Jan 22, 2013 12:54 pm Post subject:

The coldstart valve solution relies on the line feeding it to actually have some unvaporized fuel in it. It usually will dribble enough fuel to allow the motor to run long enough to activate the fuel pump and clear the lines.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

Brians924 · Joined: 17 Jan 2013 Posts: 35 Location: Massachusetts USA

gotcha!

ok then, which of these two are a more prefered method? if there is a prefered method.

grounding the csv seems easier to access than the fuel pump relay wires.

Brian
_________________
1977 Porsche 924 n/a
2.0 4sp. w/59k

Paul · Posted: Tue Jan 22, 2013 1:06 pm Post subject:

Try the CSV first it that is easier for you, but remember that solution involves running a wire from the engine compartment to the dash.

BTW I'm sending this from a beach in Kauai, HI.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

Brians924 · Joined: 17 Jan 2013 Posts: 35 Location: Massachusetts USA

How can you reply from Hawaii and not attach a picture?...

c'mon, lets see a view!

_________________
1977 Porsche 924 n/a
2.0 4sp. w/59k

Paul · Posted: Tue Jan 22, 2013 4:17 pm Post subject:

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_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.