I installed an auxiliary electric fuel pump and powered it from the rear defog sytem. Any ideas on how to increase the time duration or to set it to not time out? I can tell it's going to be a slight hassle to keep turning it on after time out or to cycle the switch prior to time out.
Thanks!

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1983 M-B 240D-Gone too.
1976 M-B 300D-Departed.

"Good" is the worst enemy of "Great".

Remove defogger relay and run a wire from bl/rd in on 15/54 to 87 out. You wont need the switch anymore and any time the key is on you will have power out to your pump.

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car