P1131, Rough idle, some live data
02-18-2018, 06:53 PM
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P1131, Rough idle, some live data
2003 4.2 XL manual 122K
Been idling rough and no fun taking off in 1st. Doesn't improve at higher speeds. It's not bad but somethings up. It used to be that i didn't hardly give any gas to take off in 1st...nice and smooth.
P1131 code been popping up, no others.
Live data: after 10 or 12 minutes idle warmup about 835 RPM
02 Sensors:
B1S1 .070-770
B1S2 .625 very little fluctuation
B2S1 .075-760
B2S2 .810 no fluctuation
Long Term Fuel Trim
B1 9.4
B2 7.8
Stayed same at 835 & 2500 RPM
Short Term Fuel Trim
B1 2 to -3.9
B1 2 to -3.1
Last year new fuel pump, regulator and filter which corrected a fuel pressure problem.
I just ordered 4 Motorcraft 02 sensors.
What do you all think?
Thanks
Been idling rough and no fun taking off in 1st. Doesn't improve at higher speeds. It's not bad but somethings up. It used to be that i didn't hardly give any gas to take off in 1st...nice and smooth.
P1131 code been popping up, no others.
Live data: after 10 or 12 minutes idle warmup about 835 RPM
02 Sensors:
B1S1 .070-770
B1S2 .625 very little fluctuation
B2S1 .075-760
B2S2 .810 no fluctuation
Long Term Fuel Trim
B1 9.4
B2 7.8
Stayed same at 835 & 2500 RPM
Short Term Fuel Trim
B1 2 to -3.9
B1 2 to -3.1
Last year new fuel pump, regulator and filter which corrected a fuel pressure problem.
I just ordered 4 Motorcraft 02 sensors.
What do you all think?
Thanks
