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How PGM-FI Works

Posted: Fri Apr 03, 2009 10:28 pm
by Prelude
PGM-FI works by injecting the right amount of fuel per cylinder based on specific engine data. The engine's control computer has sensors which measure the temperatures of the engine, coolant, oil, and outside air as well as pressure sensors to monitor oil and barometric pressure. Based on these readings and the location of the throttle, the Engine Control Unit (ECU) calculates how much oxygen and fuel should be mixed for optimal and efficient performance.

Cars with PGM-FI do not have to sit and warm the engine up in the winter season because the ECU calculates at what RPM and the fuel and air mixture the car requires to be at a normal engine temperature range


Hmm learn something new today. Though this info have been @ the internet for dun know how many donkey years. Any bros care to support on this info?

Re: How PGM-FI Works

Posted: Fri Apr 10, 2009 10:37 pm
by WIl_ron
Prelude wrote: Cars with PGM-FI do not have to sit and warm the engine up in the winter season because the ECU calculates at what RPM and the fuel and air mixture the car requires to be at a normal engine temperature range

wat it mean is at any given temp or condition the ecu can program the best/optimal fuel/air mix for the engine

still need warm up rite in the winter, as the engine oil is still not in optimal temp to do a good job to protect the engine.

....pls correct if wrong

Posted: Mon Apr 13, 2009 4:07 pm
by Jaz
Btw, what kind of cars hav tat?

Posted: Mon Apr 13, 2009 8:58 pm
by fulsik
sounds like any other mpfi setup. they just picked some letters to call it their own.

letting the car sit idle for more than half a minute is a waste of fuel. just drive it gently in the first few minutes.

more infor

Posted: Mon Apr 27, 2009 12:57 am
by thomas_77
can get more infor from this www.tegger.com/hondafaq

hope it helps .