Need some help deciphering scan tool info
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From: Orting, Wa
Need some help deciphering scan tool info
Got a P0420 code popping up on my 99 4L Ranger, so I hooked up my scanner to see what's going on. I kinda somewhat know what it all is, but I don't know if it's all happy (suppose not, or I wouldn't have a check engine light). Here's what it says
Fuel system 1 Closed loop
Calc Load 39.2
Ect 195*F
STFT B1 -3.9 to -1.5%
LTFT B1 25 (bad I know)
STFT B2 -3.9 to -1.5
LTFT B2 24.6
Spark adv @ idle 9 and at 2K rpm is about 19
IAT 78*F
MAF 0.537lbs/min @ idle
TPS @ idle 18.8
O2S B1S1 0.080-0.795V (fluxed pretty fast)
STFT B1S1 -2.3 to 10.5
O2S B1S2 0.060-0.710V (fluxed like sensor 1)
STFT B1S2 NA (this is the one that's throwing me)
O2S B2S1 0.070-0.755V (fluxed as fast as bank 1)
STFT B2S1 -4.6 to 0.7
Don't know what all this means together. I know LTFT over 10 ain't good, but what could be causing that along with the code. Cat maybe?
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Fuel system 1 Closed loop
Calc Load 39.2
Ect 195*F
STFT B1 -3.9 to -1.5%
LTFT B1 25 (bad I know)
STFT B2 -3.9 to -1.5
LTFT B2 24.6
Spark adv @ idle 9 and at 2K rpm is about 19
IAT 78*F
MAF 0.537lbs/min @ idle
TPS @ idle 18.8
O2S B1S1 0.080-0.795V (fluxed pretty fast)
STFT B1S1 -2.3 to 10.5
O2S B1S2 0.060-0.710V (fluxed like sensor 1)
STFT B1S2 NA (this is the one that's throwing me)
O2S B2S1 0.070-0.755V (fluxed as fast as bank 1)
STFT B2S1 -4.6 to 0.7
Don't know what all this means together. I know LTFT over 10 ain't good, but what could be causing that along with the code. Cat maybe?
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