Hi,

I am having 2006 Lexus GS 300 with 80K miles on it,recently I am getting check Engine Light for P0420: Catalyst System Efficiency Below Threshold (Bank 1).When I ran complete test with Torque app,Bluetooth OBD 2 scanner & I got below results.

I am more concerned about Miss Fire Code(highlighted in red).Do you guys think it requires "CSP on GS300 engine misfire"

Any Help will be greatly appreciated.

Mode $06 report generated by Torque for Android
================================================

Vehicle VIN: JTHCH96S760002497
Vehicle Manufacturer: Lexus
Vehicle Calibration ID: 33066000

Test report:
------------------
MID:$01 TID:$8e
- O2 Bank 1 Sensor 1
Max: 7.49568 Min: 0
Test result value: 0.8848
PASS
----
MID:$01 TID:$91
- O2 Bank 1 Sensor 1
Max: 3.58984mA Min: 1.5625mA
Test result value: 2.45703mA
PASS
----
MID:$02 TID:$05
Rich to Lean sensor switch time(calculated) - O2 Bank 1 Sensor 2
Max: 2,990ms Min: 0ms
Test result value: 40ms
PASS
----
MID:$02 TID:$06
Lean to Rich sensor switch time(calculated) - O2 Bank 1 Sensor 2
Max: 2,990ms Min: 0ms
Test result value: 40ms
PASS
----
MID:$02 TID:$07
Minimum sensor Voltage for test cycle(calculated) - O2 Bank 1 Sensor 2
Max: 0.448V Min: 0V
Test result value: 0.058V
PASS
----
MID:$02 TID:$08
Maximum sensor Voltage for test cycle(calculated) - O2 Bank 1 Sensor 2
Max: 1V Min: 0.605V
Test result value: 0.742V
PASS
----
MID:$02 TID:$84
- O2 Bank 1 Sensor 2
Max: 59.99622% Min: 0%
Test result value: 0%
PASS
----
MID:$02 TID:$85
- O2 Bank 1 Sensor 2
Max: 100.00641% Min: 19.99823%
Test result value: 19.99823%
PASS
----
MID:$02 TID:$86
- O2 Bank 1 Sensor 2
Max: 6,553.5S Min: 20S
Test result value: 7.5S
FAIL
----
MID:$02 TID:$87
- O2 Bank 1 Sensor 2
Max: 100.00641% Min: 39.99799%
Test result value: 37.55028%
FAIL
----
MID:$02 TID:$89
- O2 Bank 1 Sensor 2
Max: 39.99646% Min: 0%
Test result value: 36.29133%
PASS
----
MID:$02 TID:$8a
- O2 Bank 1 Sensor 2
Max: 65,535Count Min: 2Count
Test result value: 2Count
PASS
----
MID:$02 TID:$8b
- O2 Bank 1 Sensor 2
Max: 998ms Min: 0ms
Test result value: 0ms
PASS
----
MID:$02 TID:$8d
- O2 Bank 1 Sensor 2
Max: 6,994ms Min: 0ms
Test result value: 32ms
PASS
----
MID:$05 TID:$8e
- O2 Bank 2 Sensor 1
Max: 7.49568 Min: 0
Test result value: 1.06262
PASS
----
MID:$05 TID:$91
- O2 Bank 2 Sensor 1
Max: 3.58984mA Min: 1.5625mA
Test result value: 2.07422mA
PASS
----
MID:$06 TID:$05
Rich to Lean sensor switch time(calculated) - O2 Bank 2 Sensor 2
Max: 2,990ms Min: 0ms
Test result value: 40ms
PASS
----
MID:$06 TID:$06
Lean to Rich sensor switch time(calculated) - O2 Bank 2 Sensor 2
Max: 2,990ms Min: 0ms
Test result value: 40ms
PASS
----
MID:$06 TID:$07
Minimum sensor Voltage for test cycle(calculated) - O2 Bank 2 Sensor 2
Max: 0.448V Min: 0V
Test result value: 0.019V
PASS
----
MID:$06 TID:$08
Maximum sensor Voltage for test cycle(calculated) - O2 Bank 2 Sensor 2
Max: 1V Min: 0.605V
Test result value: 0.781V
PASS
----
MID:$06 TID:$84
- O2 Bank 2 Sensor 2
Max: 59.99622% Min: 0%
Test result value: 0%
PASS
----
MID:$06 TID:$85
- O2 Bank 2 Sensor 2
Max: 100.00641% Min: 19.99823%
Test result value: 11.21305%
FAIL
----
MID:$06 TID:$86
- O2 Bank 2 Sensor 2
Max: 6,553.5S Min: 20S
Test result value: 9.1S
FAIL
----
MID:$06 TID:$87
- O2 Bank 2 Sensor 2
Max: 100.00641% Min: 39.99799%
Test result value: 39.99799%
PASS
----
MID:$06 TID:$89
- O2 Bank 2 Sensor 2
Max: 39.99646% Min: 0%
Test result value: 14.59161%
PASS
----
MID:$06 TID:$8a
- O2 Bank 2 Sensor 2
Max: 65,535Count Min: 2Count
Test result value: 2Count
PASS
----
MID:$06 TID:$8b
- O2 Bank 2 Sensor 2
Max: 998ms Min: 0ms
Test result value: 16ms
PASS
----
MID:$06 TID:$8d
- O2 Bank 2 Sensor 2
Max: 6,994ms Min: 0ms
Test result value: 1,081ms
PASS
----
MID:$13 TID:$33
-
Max: 205AFR Min: 516.85004AFR
Test result value: 3,276AFR
FAIL
----
MID:$21 TID:$a7
- Catalyst Monitor Bank 1
Max: 20.2V Min: 0V
Test result value: 23.94V
FAIL
----

MID:$21 TID:$a8
- Catalyst Monitor Bank 1
Test incomplete or dependant test failed
--
MID:$21 TID:$aa
- Catalyst Monitor Bank 1
Test incomplete or dependant test failed
--
MID:$21 TID:$ab
- Catalyst Monitor Bank 1
Test incomplete or dependant test failed
--
MID:$22 TID:$a7
- Catalyst Monitor Bank 2
Test incomplete or dependant test failed
--
MID:$22 TID:$a8
- Catalyst Monitor Bank 2
Max: 26.59V Min: 0V
Test result value: 1.77V
PASS
----
MID:$22 TID:$aa
- Catalyst Monitor Bank 2
Test incomplete or dependant test failed
--
MID:$22 TID:$ab
- Catalyst Monitor Bank 2
Test incomplete or dependant test failed
--
MID:$36 TID:$66
-
Max: 597 Min: 26,771
Test result value: 65,520
FAIL
----
MID:$3d TID:$c9
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 0.11kPa
PASS
----
MID:$3d TID:$ca
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 2.222kPa
PASS
----
MID:$3d TID:$cb
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 1.386kPa
PASS
----
MID:$3d TID:$cd
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 1.386kPa
PASS
----
MID:$3d TID:$ce
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 2.024kPa
PASS
----
MID:$3d TID:$cf
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 1.496kPa
PASS
----
MID:$3d TID:$d0
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 2.376kPa
PASS
----
MID:$3d TID:$d1
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 1.386kPa
PASS
----
MID:$3d TID:$d4
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 2.134kPa
PASS
----
MID:$3d TID:$d5
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 2.222kPa
PASS
----
MID:$3d TID:$d7
- EVAP Monitor (0.020")
Max: 32.767kPa Min: 0kPa
Test result value: 0kPa
PASS
----
MID:$43 TID:$33
- O2 Heater Monitor Bank 1 - Sensor 3
Max: 205.05AFR Min: 1,336.05005AFR
Test result value: 3,276AFR
FAIL
----
MID:$a1 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Monitor General Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a1 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Monitor General Data
Max: 65,535Count Min: 0Count
Test result value: 5Count
PASS
----
MID:$a2 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a2 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 1Count
PASS
----
MID:$a3 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 2 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$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:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 3 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$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:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a5 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 2Count
PASS
----
MID:$a6 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a6 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 1Count
PASS
----
MID:$a7 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a7 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 1Count
PASS
----
MID:$b0 TID:$0c
Misfire counts for last/current driving cycles(calculated) -
Max: 1,638 Min: 26,739
Test result value: 65,520
FAIL
----
MID:$d0 TID:$25
-
Max: 0 Min: 26,691
Test result value: 16,000
FAIL
----
MID:$e1 TID:$e8
Manufacturer defined MID -
Max: 3,276.69995°C Min: 75°C
Test result value: 75°C
PASS
----
MID:$f6 TID:$66
Manufacturer defined MID -
Max: 1,486 Min: 10,387
Test result value: 65,520
FAIL
----
End of report.

 

You only show a couple of misfires on the individual cylinders so I think the data is being misinterpreted for misfire counts PId in your list.

But... where did you get the PIds for torque that you're using? I have looked everywhere and the only Toyota/Lexus PIds I ever found were for the Prius and none of them looked useful in terms of misfire data etc.

 

I just used Torque Pro App & I did not install any plugins.In order to get these cheques I used Test Results tab in Torque Pro App.

Do you think my car will be impacted by recall or Is it normal to have low number of misfires

 

A low number of misfires can be found on even brand new cars. But it never hurt anybody to have it checked out.

 

Thanks Binary Jay.Then I will concentrate on Cat & O2 alerts.This weekend I will take car to exhaust shop let them run diagnostics.Hopefully it is not CAT