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This is a compilation from hptuners, along with some basic stuff some might not know. If anything is wrong please correct me.
These are basic things you will see in various tables
MAF = Mass Airflow Sensor
MAP = Manifold Air Pressure, measures in KPA
IFR = Injector Flow Rate
LTFT = Long Term Fuel Trims
STFT = Short Term Fuel Trims
ECT = Engine Coolant Temperature
IAT = Intake Air Temperature
KR = Knock Retard
*IFR Table*
IFR vs. KPA Vac: decreasing values makes the VCM think the fuel injectors are smaller therefore keeping them on for a longer period of time which increases fuel flow and makes the engine run more rich. Increasing values does the exact opposite. This is a good starting point for getting LTFT's slightly negative.
Excellent writup on timing
http://www.clubgp.com/newforum/tm.as...heck=735199779
[ April 17, 2005, 06:38 PM: Message edited by: saltnvinegar6287 ]
These are basic things you will see in various tables
MAF = Mass Airflow Sensor
MAP = Manifold Air Pressure, measures in KPA
IFR = Injector Flow Rate
LTFT = Long Term Fuel Trims
STFT = Short Term Fuel Trims
ECT = Engine Coolant Temperature
IAT = Intake Air Temperature
KR = Knock Retard
*IFR Table*
IFR vs. KPA Vac: decreasing values makes the VCM think the fuel injectors are smaller therefore keeping them on for a longer period of time which increases fuel flow and makes the engine run more rich. Increasing values does the exact opposite. This is a good starting point for getting LTFT's slightly negative.
Excellent writup on timing
http://www.clubgp.com/newforum/tm.as...heck=735199779
[ April 17, 2005, 06:38 PM: Message edited by: saltnvinegar6287 ]
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