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cj847 · 07-08-2019, 05:05 PM

From what I have learned:

-The fuel filter/regulator in the sketch is the stock setup used in 1999 Corvette. I am running the same set up in my Willys. An in tank fuel pump will last years running continuously as that is the way most were set up until the last several years. Certainly a PWM pump will last even longer, but is it worth it?

-The problem with PWM fuel pumps - The pump I guess is the same, but the on/off switching often comes from a separate controller (not from the PCM). If your pump goes out and you replace it, the controller has to be reset/calibrated at the dealership before the pump will work. Full disclosure- I don't know this from experience, only from research as I was trying to find out how to use a PWM controlled fuel pump using junkyard parts. After finding that story I decided a 99 vette fuel filter was good enough for me.....

07-08-2019, 05:05 PM	#888
cj847 Registered User Join Date: Sep 2016 Location: Ft Smith, AR Posts: 543	Re: Project: Recycle From what I have learned: -The fuel filter/regulator in the sketch is the stock setup used in 1999 Corvette. I am running the same set up in my Willys. An in tank fuel pump will last years running continuously as that is the way most were set up until the last several years. Certainly a PWM pump will last even longer, but is it worth it? -The problem with PWM fuel pumps - The pump I guess is the same, but the on/off switching often comes from a separate controller (not from the PCM). If your pump goes out and you replace it, the controller has to be reset/calibrated at the dealership before the pump will work. Full disclosure- I don't know this from experience, only from research as I was trying to find out how to use a PWM controlled fuel pump using junkyard parts. After finding that story I decided a 99 vette fuel filter was good enough for me.....