Fuel pump pressure.

From: Azie L. Magnusson (maggie11@mchsi.com)
Date: Fri Aug 28 2009 - 12:04:00 EDT


Brian C. writes:: >> And how do you know it's a slow start
due to that?? When you turn the key on, you can hear the pump
kick on. No need to cycle the key on and off. If the pump
turns on it build pressure. Cycling the key won't make it build up
any more pressure than the pump can make the first time <<

I respectfully disagree Brian... When the ignition is turned on,
the fuel pump only runs for a couple of seconds(if for that
long), and then quits until the PCM gets a signal from the crank
sensor that the engine is rotating.. By turning the ignition off
and back on you start the cycle over and the pump again is on
for the programed time and then turns off until the engine is
rotating. So, you get pressure build up by rotating the ignition
on & off a few times.....
   
Forgive your enemies. It messes up their heads.

Azie



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