T O P I C R E V I E W
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1sicklx
Member # 1018
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posted
should i put a on/off switch on the trex when i intalled it so i save fuel during normal driving, or should i have it on at all times when i am driving... thanks
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st5150
Member # 51
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posted
Its meant to be ran all the time. If you put an on-off switch on it, it will only act as a restriction to your intank pump.
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1sicklx
Member # 1018
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posted
thanks for the imput, i was thinking it would overheat or something thats why i ask...
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st5150
Member # 51
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posted
quote: Originally posted by 1sicklx: thanks for the imput, i was thinking it would overheat or something thats why i ask...
Thats only true for some pumps like the Weldon's.
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v8302stangs
Member # 530
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posted
Yeah I would imagine that your computer would control the fuel anyways, so having more pressure in the line would really have very little effect.
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st5150
Member # 51
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posted
quote: Originally posted by v8302stangs: Yeah I would imagine that your computer would control the fuel anyways, so having more pressure in the line would really have very little effect.
Now that statement made no sense.
Only '99+ cars have the EEC control the fuel pump variably. Pre '99 cars, the EEC just flicks the fuel pump relay on and off with the iginition switch. Post '99 cars, the EEC monitors the fuel pressure at the rail via a pressure sending unit and accordingly drives the pump.
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