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Posted

I figured I would share this for any of the guru's out there. Most I get so I will need to pull the book for some of the odd ball things. Do not ge the, for example, LT FTRM x (long term fuel trim).

Car sitting for 3 days, in garage, since I take my bike to work.

Outside Variables:

-Outside temp 78 F

-8-18-2005

-Car data via Snap-on Microscan Scanner Took 39 “snap shots”

- I did not post all 35 here....to long...so this is a snap shot of data...neat I think.

(1 out of 35) (just started)

MIL STATUS: OFF

ABSLT TPS (%) 13.3

ENGINE (RPM) 1517

CALC LOAD (%) 25.1

MAF (LB/M): 1.49

COOLANT (F): 86

IAT (F) 79

IGN ADV (DEG) 10.5

LT FTRM1(%) –5.5

ST FTRM1(%) –5.5

LT FTRM2 (%) –3.9

ST FTRM2(%) –5.5

VEH SPEED (MPH) 0

FUEL SYS 1: CLSD

FUEL SYS 2: CLSD

O2S11(V): 0.655

STFTRM11 (%) –5.5

O2S12: 0.080

O2S21: -.655

STFTRM21(%) –7.0

(11 out of 35) (pulled out of driveway and starting to move)

MIL STATUS: OFF

ABSLT TPS (%) 16.1

ENGINE (RPM) 1343

CALC LOAD (%) 40.4

MAF (LB/M) 2.17

COOLANT (F): 109

IAT (F): 81

IGN ADV (DEG) 20.0

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

VEH SPEED (MPH): 6

FUEL SYS 1: CLSD

FUEL SYS 2: CLSD

O2S11(V): 0.665

STFTRM11 (%) –3.9

(21 out of 35) (driving down road about 1/5 mile)

MIL STATUS: OFF

ABSLT TPS (%) 18.0

ENGINE (RPM) 2124

CALC LOAD (%) 31.4

MAF (LB/M) 2.61

COOLANT (F): 124

IAT (F): 81

IGN ADV (DEG) 31.5

LT FTRM1 %) –3.1

ST FTRM1(%) –2.3

LT FTRM2 (%) –3.9

ST FTRM2(%) –9.4

VEH SPEED (MPH): 37

FUEL SYS 1: CLSD

FUEL SYS 2: CLSD

O2S11(V): 0.600

STFTRM11 (%) –20.3

O2S12: 0.865

O2S21: 0.685

STFTRM21(%) –14.8

**Any comments throw them out. I did it since of the other thread that Toysrme commented on (thanks). He got me thinking about my o2 sensors. So this was the outcome. Overboard as :D :D


Posted

Ironic, I was just talking to a solara owner having o2 problems. (16mpg)

Something very important to note is how Toyota V bank computers tune fuel. The ECU treats the different banks like different engines. Ignition, controls, it's one engine, but when it comes to fuel... Nope! Each bank get's tuned like a different engine.

(21 out of 35) (driving down road about 1/5 mile)

Everything looks pretty good.

Well, with 2.61lb/m it's making about... 30hp.

If you just want to give me something to do, turn the cruise control on say 40mph. Type in 3/4/5 in snaps in a row. I'm curious on your o2 readings. 0.685v is a bit high for cruising around. Normally they don't go so high out of throttle transitions/open loop acceleration.

One snapshot doesn't tell a story, I'd like to see 1/2 snapshots before & after.

Man... If I had an OBD-II car, I would be big pimping the scanners that run on a palm. Those things read everything for real cheap! Eh, you get use to reading volt gauges & multi meters with OBD-I hahahahaha

Posted
If you just want to give me something to do, turn the cruise control on say 40mph. Type in 3/4/5 in snaps in a row. I'm curious on your o2 readings. 0.685v is a bit high for cruising around. Normally they don't go so high out of throttle transitions/open loop acceleration.

One snapshot doesn't tell a story, I'd like to see 1/2 snapshots before & after.

**EDIT: mileage in city: 23.273 to 24.875 (via my tacking from past 3+ years. Highway is 27 to 29.XXX mpg.

1

VEH SPEED (MPH): 42

O2S11(V): 0.650

O2S12: 0.555

O2S21: 0.650

LT FTRM1 %) –4.7

ST FTRM1(%) –7.8

LT FTRM2 (%) –3.9

ST FTRM2(%) –0.8

ST FTRM11 (%): -3.9

ST FTRM 21 (%): –4.7

2

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.430

O2S21: 0.660

LT FTRM1 %) –2.3

ST FTRM1(%) –5.5

LT FTRM2 (%) –2.3

ST FTRM2(%) –5.5

ST FTRM11 (%): -6.3

ST FTRM 21 (%) –5.5

3

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.265

O2S21: 0.655

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -5.5

ST FTRM 21 (%): -5.5

4

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.205

O2S21: 0.660

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -6.3

ST FTRM 21 (%): -4.

5

VEH SPEED (MPH): 42

O2S11(V): 0.660

O2S12: 0.160

O2S21: 0.655

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -3.9

ST FTRM 21 (%):-4.7

6

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.160

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -3.9

ST FTRM 21 (%): -4.7

7

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.150

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -3.1

ST FTRM 21 (%):-4.7

8

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.160

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -2.3

ST FTRM 21 (%): -3.1

9

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.160

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -2.3

ST FTRM 21 (%): -3.1

10

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.155

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -2.3

ST FTRM (%) 21: -3.9

11

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.175

O2S21: 0.655

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -3.9

ST FTRM 21 (%): -3.96

12

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.190

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -2.3

ST FTRM 21 (%): -3.9

13

VEH SPEED (MPH): 42

O2S11(V): 0.650

O2S12: 0.230

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -2.3

ST FTRM 21 (%) : -3.9

14

VEH SPEED (MPH): 42

O2S11(V): 0.640

O2S12: 0.325

O2S21: 0.660

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -4.7

ST FTRM 21 (%): -3.9

15

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.355

O2S21: 0.645

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -1.6

ST FTRM 21 (%): -3.1

16

VEH SPEED (MPH): 42

O2S11(V): 0.650

O2S12: 0.535

O2S21: 0.650

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -3.1

ST FTRM 21 (%) : -4.7

17

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.675

O2S21: 0.655

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -3.1

ST FTRM 21 (%): -4.7

18

VEH SPEED (MPH): 42

O2S11(V): 0.655

O2S12: 0.685

O2S21: 0.655

LT FTRM1 %) –5.5

ST FTRM1(%) –4.7

LT FTRM2 (%) –3.1

ST FTRM2(%) –6.3

ST FTRM11 (%): -1.6

ST FTRM 21 (%):-3.9

Posted
Looks good. I would expect it to use a little lessfuel crusing around, but that's still damn good mileage.

Any idea which O2ID goes to what location? Example, O2S11 in the font, back or by the cat..

Posted

O2S11(V): 0.650 - bank 1, sensor 1 (rear bank)

O2S12: 0.555 - bank 1, sensor 2 (post-cat)

O2S21: 0.650 - bank 2, sensor 1 (front bank)

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