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by the_big_h
Wed Jul 30, 2008 10:53 am
Forum: Tuning Fuel and Air
Topic: PWM for Fuel Pump reduction
Replies: 4
Views: 1127

Re: PWM for Fuel Pump reduction

I had a Ford Econoline van, the Fuel Pressure Regulator failed. Went waaaay rich, couldn't drive it. Until I could get a new FPR, I wired a headlight in series with the fuel pump. A light bulb is almost like a current regulator - if you give it less voltage, the filament cools off, the resistance ...