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Old 4th November 2005, 20:27   #1
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Default pgm-fi

need to know how different PGM-FI is from the MPFI..

Last edited by inmate : 4th November 2005 at 20:28.
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Old 5th November 2005, 10:06   #2
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PGM-FI - programmable fuel injection system. Usually vehicles from the factory are in a fixed state of tune, so a programmable systems lets you tune the ecu the way you want it..

MPFI - multi point fuel injection is a type of fuel injection setup where each cylinder gets its own injector.

Other type is TBI ( throttle body fuel injetion) which has a single/double injector setup at the throttle body feeding all the cylinders.

A PGM-FI system can use either MPFI or TBI.
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