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Message: <blockquote data-quote="95PGTTech" data-source="post: 609320" data-attributes="member: 9525">In your pic, it's not there but follow the black tube, the S/C inlet.Without getting too complicated, you can't just put a standard Walbro 255lph (GSS342) in a 98 fuel system. You can in a 96-97 because the PCM just sends it +12V all the time. In 98, they move to PWM (pulse width modulation). It does send +12V still to the pump, but it doesn't send it full time, it sort of hits it with a frequency. This frequency can burn out a pump designed for +12V run full time. The easiest way to upgrade the pumps is to go with a larger-flow OEM ford unit set up for PWM - Focus, Avaiator, 03-04 cobra dual pumps, etc. This is where you get into a lot of the upgraded FPDM (fuel pump driver module) units in the new cars.For your application, the absolute easiest, direct-drop in way of doing it is to go with a Aviator pump. 42s, 90mm MAF, and Aviator pump is an easy tune for just about anybody with good driveability and will support the power you have now @ 8psi and allow room to grow up to around 400whp, give or take.</blockquote>