powdbyrice

Hopefully someone speaks OBD2.

Recently my MPG has dropped from the high 20s to the high teens. I used to be able to get 30+ mpg cruising along on the freeway, now it struggles to get 26. Im not throwing any CELs and the car is not behaving in any unusual way.

I ran this test through Torque Pro on my smartphone. Here are the results. The failed tests are in bold.

Thanks!


Test report:
------------------
MID:$01 TID:$80
- O2 Bank 1 Sensor 1
Max: 40S Min: 0S
Test result value: 25S
PASS
----
MID:$01 TID:$81
- O2 Bank 1 Sensor 1
Max: 110Ohm Min: 0Ohm
Test result value: 74Ohm
PASS
----
MID:$01 TID:$82
- O2 Bank 1 Sensor 1
Test incomplete or dependant test failed
--
MID:$01 TID:$83
- O2 Bank 1 Sensor 1
Max: 3.30859mA Min: -128mA
Test result value: 0.00781mA
PASS
----
MID:$01 TID:$84
- O2 Bank 1 Sensor 1
Max: 5.57422mA Min: 1.23438mA
Test result value: 3.81641mA
PASS
----
MID:$01 TID:$87
- O2 Bank 1 Sensor 1
Test incomplete or dependant test failed
--
MID:$01 TID:$88
- O2 Bank 1 Sensor 1
Test incomplete or dependant test failed
--
MID:$02 TID:$98
- O2 Bank 1 Sensor 2
Max: 65.535V Min: 0.65V
Test result value: 0.786V
PASS
----
MID:$02 TID:$99
- O2 Bank 1 Sensor 2
Max: 0.293V Min: 0V
Test result value: 0.131V
PASS
----
MID:$02 TID:$9a
- O2 Bank 1 Sensor 2
Max: 1.27V Min: 0V
Test result value: 0.779V
PASS
----
MID:$02 TID:$9b
- O2 Bank 1 Sensor 2
Max: 1,320ms Min: 0ms
Test result value: 110ms
PASS
----
MID:$02 TID:$9c
- O2 Bank 1 Sensor 2
Max: 65.535V Min: 0.05V
Test result value: 0.779V
PASS
----
MID:$05 TID:$80
- O2 Bank 2 Sensor 1
Max: 40S Min: 0S
Test result value: 25S
PASS
----
MID:$05 TID:$81
- O2 Bank 2 Sensor 1
Max: 110Ohm Min: 0Ohm
Test result value: 75Ohm
PASS
----
MID:$05 TID:$82
- O2 Bank 2 Sensor 1
Test incomplete or dependant test failed
--
MID:$05 TID:$83
- O2 Bank 2 Sensor 1
Max: 3.29688mA Min: -128mA
Test result value: 0.00781mA
PASS
----
MID:$05 TID:$84
- O2 Bank 2 Sensor 1
Max: 5.56641mA Min: 1.22266mA
Test result value: 3.4375mA
PASS
----
MID:$05 TID:$87
- O2 Bank 2 Sensor 1
Test incomplete or dependant test failed
--
MID:$05 TID:$88
- O2 Bank 2 Sensor 1
Test incomplete or dependant test failed
--
MID:$06 TID:$98
- O2 Bank 2 Sensor 2
Max: 65.535V Min: 0.65V
Test result value: 0.761V
PASS
----
MID:$06 TID:$99
- O2 Bank 2 Sensor 2
Max: 0.293V Min: 0V
Test result value: 0.131V
PASS
----
MID:$06 TID:$9a
- O2 Bank 2 Sensor 2
Max: 1.27V Min: 0V
Test result value: 0.747V
PASS
----
MID:$06 TID:$9b
- O2 Bank 2 Sensor 2
Max: 1,410ms Min: 0ms
Test result value: 80ms
PASS
----
MID:$06 TID:$9c
- O2 Bank 2 Sensor 2
Max: 65.535V Min: 0.05V
Test result value: 0.747V
PASS
----
MID:$10 TID:$13
- O2 Bank 4 Sensor 4
Max: 4,158 Min: 6,224
Test result value: 22,832
FAIL
----
MID:$21 TID:$a0
- Catalyst Monitor Bank 1
Max: 784 Min: 0
Test result value: 4
PASS
----
MID:$22 TID:$a0
- Catalyst Monitor Bank 2
Max: 768 Min: 0
Test result value: 4
PASS
----
MID:$28 TID:$5d
-
Max: 21,845 Min: 21,845
Test result value: 65,525
FAIL
----
MID:$30 TID:$03
Low sensor Voltage for switch time calculation -
Max: 0.06% Min: 106.73%
Test result value: 655.20001%
FAIL
----
MID:$30 TID:$0c
Misfire counts for last/current driving cycles(calculated) -
Max: 1,976.55005AFR Min: 372.95001AFR
Test result value: 3,276.15015AFR
FAIL
----
MID:$31 TID:$d0
- EGR Monitor Bank 1
Max: 0.04014inch Min: 0inch
Test result value: 0.02043inch
PASS
----
MID:$31 TID:$d1
- EGR Monitor Bank 1
Max: 1.99882inch Min: 0.00589inch
Test result value: 0.05703inch
PASS
----
MID:$31 TID:$d2
- EGR Monitor Bank 1
Max: 655.34998% Min: 342.67999%
Test result value: 426.78%
PASS
----
MID:$3a TID:$ba
- EVAP Monitor (cap off)
Max: 1,200S Min: 0S
Test result value: 22S
PASS
----
MID:$3c TID:$b4
- EVAP Monitor (0.040")
Max: 1.84952 Min: 0
Test result value: 0.46726
PASS
----
MID:$3c TID:$b5
- EVAP Monitor (0.040")
Test incomplete or dependant test failed
--
MID:$3c TID:$b6
- EVAP Monitor (0.040")
Test incomplete or dependant test failed
--
MID:$3c TID:$b7
- EVAP Monitor (0.040")
Test incomplete or dependant test failed
--
MID:$3c TID:$b8
- EVAP Monitor (0.040")
Test incomplete or dependant test failed
--
MID:$3d TID:$b9
- EVAP Monitor (0.020")
Max: 100.00641% Min: 0.19991%
Test result value: 0.99953%
PASS
----
MID:$68 TID:$5d
-
Max: 21,845 Min: 21,845
Test result value: 65,525
FAIL
----
MID:$70 TID:$03
Low sensor Voltage for switch time calculation -
Max: 0.06% Min: 106.73%
Test result value: 655.20001%
FAIL
----
MID:$81 TID:$d8
- Fuel System Monitor Bank 1
Max: 1.18682 Min: 0.84326
Test result value: 1.01507
PASS
----
MID:$82 TID:$d8
- Fuel System Monitor Bank 2
Max: 1.18682 Min: 0.84326
Test result value: 1.02029
PASS
----
MID:$90 TID:$03
Low sensor Voltage for switch time calculation -
Max: 0.06% Min: 106.73%
Test result value: 655.20001%
FAIL
----
MID:$90 TID:$28
-
Max: -204.72% Min: 270.23999%
Test result value: -0.16%
FAIL
----
MID:$a2 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a3 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 2 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a4 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 3 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a5 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a6 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a7 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$b0 TID:$03
Low sensor Voltage for switch time calculation -
Max: 0.05% Min: 270.57001%
Test result value: 655.20001%
FAIL
----
MID:$d0 TID:$03
Low sensor Voltage for switch time calculation -
Max: 0.1% Min: 270.57001%
Test result value: 655.20001%
FAIL
----
MID:$d0 TID:$28
-
Max: -204.73% Min: 106.39999%
Test result value: -0.16%
FAIL
----

End of report.

nfnsquared

I'm guessing it's a bad O2 sensor. Not sure what the report means by "bank 4, sensor 4". Take your car to any auto parts chain store and get your codes read for free.

FYI, bank 1 is the Cat near the firewall. Sensor 1 is the top (upstream) and sensor 2 is the bottom one. Bank 2 is near the radiator.