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#11
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*shrug* worth a shot. Thx for the info. I'll do that tomorrow.
-Mike -- A happy kid behind the wheel of a 98 Mustang GT Cold air intake FRPP 3.73 gears Steeda Tri-Ax Shifter Flowmaster 40 Series mufflers (self-installed woohoo) Hi-speed fan switch 255/60R-15 rear tires Subframe connectors Aluminum adjustable clutch quadrant "Dan" > wrote in message oups.com... > The PCM maintains a set of parameters that allow it to adapt the > changes in the system over time. Some of these are short term fuel > trims (STFT) and long term fuel trims (LTFT) which are time averaged > parameters that the PCM uses to shift the AFR. For example, if your car > tends to run lean, the fuel trims will cause the mixture to be a little > richer to accomodate this. The long term fuel trims are also used by > the PCM at WOT as the open loop fuel modifier (OLFM). > > It can happen, for a number of reasons, that the trims shift too far > and cause some mild drivability issues. It's not very common but it can > happen. > > . > Dan > 2003 Cobra convertible > With some stuff and things > |
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#12
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>"Deputy Dog"
>Mike, I don't know whether its applicable to you, but here in Pa in November >they start putting a funky additive in the gas to reduce emissions in the >winter. well poop. that explains a lot. I've been getting poor-er milage since right about then and had no idea why. Nice of them to let the public know, huh? Where in PA are you at Dave? I'm stationed in NEPA. |
#13
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Chester county
Dave "Ffud1979" > wrote in message ... > >"Deputy Dog" > >>Mike, I don't know whether its applicable to you, but here in Pa in >>November >>they start putting a funky additive in the gas to reduce emissions in the >>winter. > > well poop. that explains a lot. I've been getting poor-er milage since > right > about then and had no idea why. Nice of them to let the public know, huh? > Where > in PA are you at Dave? I'm stationed in NEPA. > > |
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