LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

fuel pressures and WOT.

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Old May 9, 2003 | 03:30 PM
  #1  
yorkie's Avatar
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fuel pressures and WOT.

At idle (vac hose) off I get 45 and with the hose on I get 39-40, then take it out for a drive watch the guage, And it only goes to 45 WOT, Shouldn't it bee like 55-60? Pump Bad???
Old May 9, 2003 | 03:32 PM
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No.

At WOT the fuel pressure should return to very slightly below the "no vacuum" idle value.
Old May 9, 2003 | 03:42 PM
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Good ahhhhhhh

I just put a new filter in too, thought it might be that but no change. So looks like it is fine and normal.
Old May 9, 2003 | 03:46 PM
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Sounds like your fuel system is healthy
Old May 9, 2003 | 04:20 PM
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good cause...

I didnt want to drop the tank Glad it is good.
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