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CyberCop · 04-04-2002, 05:33 PM

I have recently added a 255LPH fuel pump on my 199 Mustang cobra 4.6 4V, as part of a supoercharger upgrade. None of the other modification have been installed except for the pump. When I driver the car, I get radical fuel pressure fluxuations from 35-60 lbs under load.

Is this normal??? Does a chip fix this???

Thanks!

04-04-2002, 05:33 PM	#1
CyberCop Registered Member Join Date: Apr 2002 Posts: 1	Unstable Fuel Pressure I have recently added a 255LPH fuel pump on my 199 Mustang cobra 4.6 4V, as part of a supoercharger upgrade. None of the other modification have been installed except for the pump. When I driver the car, I get radical fuel pressure fluxuations from 35-60 lbs under load. Is this normal??? Does a chip fix this??? Thanks!