× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Fuel pump waveform
Posted to Technical Discussion Forum on 1/28/2008

Hi Shannon,

the voltage at the relay looks OK, however I would be interested what the voltage across the pump is, the amperage looks low, rule of thumb may be more like 1 Amp/10 psi of pressure on average.

what you have for amp draw would suggest a possibl... Login to read more.