PCM obd2 readings

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Apr 25, 2017 | 07:57 PM

rock2610d

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Fleet Mechanic

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From: Wyoming

PCM obd2 readings

2001 4x4 excurain V10

There are no codes, but doesn't below data show right side O2 sensor is not working?

O2S B1 S1 (V) .115 to .84
STFT B1S1 (%) 3.1
O2S B1 S2 (V) 0.0
STFT B1 S2 (%) 99.2

STFT B1. 0 TO 3.1
LTFTB1. -7.8
STFTB2. -3 TO 4
LTFTB2. -1.6

Apr 25, 2017 | 08:04 PM

projectSHO89

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From: St Louis

Your truck probably doesn't have a downstream O2 sensor so the scanner/software just zeros out the "reading".

Are you working on an actual existing problem or trying to create a new one?

Apr 25, 2017 | 09:01 PM

rock2610d

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From: Wyoming

You are correct it does not have a down stream O2 sensor.

But it has 2 O2 sensors, one on left side and one on right side pre cat. I thought S1 would be side 1 and S2 would be side 2?

Apr 25, 2017 | 11:38 PM

Sam I Am

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From: Fort Smith, Arkansas

S1 = "S"ensor 1

Apr 26, 2017 | 03:59 AM

DavidT.

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From: NorCal

Quote:

Originally Posted by rock2610d

I thought S1 would be side 1 and S2 would be side 2?

Negative. B1S1 stands for Bank 1 Sensor 1. For the other side, it's B2S1 (Bank 2 Sensor 1). In your case you have no rear O2 sensors so readings for B1S2 and B2S2 are not relevant. And if you're wondering, for the 6.8 V10 bank 1 is the passenger side and bank 2 is the driver's side

Apr 26, 2017 | 06:32 AM

krewat

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From: Long Island USA

Ditto ... "Bank 1" is the one with cylinder #1. I think this is for all vehicles, not just Fords.

Apr 26, 2017 | 08:18 AM

rock2610d

Thread Starter

Fleet Mechanic

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Posts: 1,576

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From: Wyoming

Thanks, appriciate your help.

So I have readings for only 1 O2 sensor?

Obd2 shows no other O2 readings for second sensor. How do I know the readings on both sensors?

I have no B2S1 O2 data on my obd2 device.
No heading to even look at for any results.

Paid $150 for this crap obd2 reader, logger and it can't evendors give me ABS info. Now it can't log both O2 sensors.