Calculated Engine Load?
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Calculated Engine Load?
I've been using AutoTap with my 1996 F150 5.8l truck and it shows a "calculated engine load" value of 40-50% at idle. Can someone tell me if this is a normal idle value or do I have a problem here? No codes but engine has been getting lousy gas mileage 7-8mpg and performance is way down.
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Runs good and starts easy but gas mileage has gone thru the floor (7-8mpg) and performance seems way off althought this truck has never been a performance champ. New plugs, wires, cap, rotor, coil, air filter, catalytic converter, O2 sensors, timing set at 10 degrees, 82k miles
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With truck fully warmed up I see about 1.05v on pin "D" of the MAF at idle. It looks like short term trims are being read about once per second by Autotap and move back and forth from -2.3% to +2.3% on both banks but spend most of their time between -.8% to +.8%.
Last edited by Motorhead-42; May 11, 2007 at 07:59 AM.
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I pulled the IAC valve and although it looked clean I gave it a good cleaning again. Reinstalled it and it still shows 0.2% but never changes regardless of throttle position. I'm not sure that Autotap is accurately measuring this input. Is there another way to verify it's function?