FICM question
Since I got a Scan gauge for The Van it allows me to obsess over more things while I drive. Monitoring the voltage of the FICM, it doesn't get up to 48.5 volts until the EOT gets to 190 degrees. The voltage floats between a low of 43 and high of 48.5. Once The Van gets up to operating temp, after about 10 miles, the FICM shows a constant 46.5 to 48.5 volts. The Van runs great, starts right up when cold, and after 80k miles I've had no issues, but should I be concerned about the short term low FICM voltage?
Tom
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2005 SMB RB 50 4X4 w/ a 6.0 PSD
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