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International Automotive Technicians Network
Re: 1999 F550 diesel no start
Posted to HD/Fleet Forum on 8/7/2007 10 Replies

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Do not believe ICP PSI as it is a calculated value. Only look at ICPV on a no start. .2-.25V= 0PSI. .8V= 500PSI needed to start. The injectors don't even turn on until the PCM sees 300-500PSI (.6-.8V... Login to read more.

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