Aftermarket intake

2004 CHEVROLET SILVERADO
310,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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DALTONTROTTER
I have a 2004 5.3 and I installed a acesefi aftermarket intake and I’m not sure if I need to do anything about my map sensor since my old intake had one but this one doesn’t.
Nov 26, 2025 at 4:26 PM
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STEVE W.
  • ✓ASE Certified Mechanic
  • 15,171 POSTS
  • ASE Certified Mechanic
It needs the sensor to calculate the fuel flow based on the pressure and vacuum in the intake. You will need to figure out a way to mount it into the new intake unless you have added a custom tune that eliminates it. Most of the aftermarket intakes have ports where you can tap the vacuum the MAP needs.
Nov 26, 2025 at 9:48 PM
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