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Hello all.
Finally got around to checking out the scan tool I picked up. And of course I needed to get one that would service all the cars in the family, not just VW. (Sorry RossTech)
As expected we do have some issues that may be playing up with the P0420 code. Namely the fuel trim numbers. The short term trim numbers are right where they should be. Long term? Hosed and out of whack. Below are a few of the data shots:
Now I'm not the sharpest knife in the bulb box. (bad pun) But it looks like the engine is running rich for the long term trim. And the other oddball question? I can interpret the O2 sensor bank 2--that should be the one after the converter. (I would hope)
But I'm in the woods as to the bank-1-sensor-1 only showing current and not voltage? Should this not be a voltage reading I'm looking at?
I know this little bug has some issues and it appears to be running a bit on the rich side. Just looking for some information on why the tool would only report amps on the front sensor? Or am I missing something simple?
S-
Finally got around to checking out the scan tool I picked up. And of course I needed to get one that would service all the cars in the family, not just VW. (Sorry RossTech)
As expected we do have some issues that may be playing up with the P0420 code. Namely the fuel trim numbers. The short term trim numbers are right where they should be. Long term? Hosed and out of whack. Below are a few of the data shots:
Live Data
Number of DTCs stored in this ECU 1
Fuel system 1 statusCL
Fuel System 2 status--
Calculated LOAD Value(%)20.4
Engine Coolant Temperature(¡£C)93
Short Term Fuel Trim -Bank 1(%)-2.3
Long Term Fuel Trim - Bank 1(%)9.4
Engine RPM(rpm) 2731
Vehicle Speed Sensor(km/h)90
Ignition Timing Advanece for #1 Cylinder(¡£)27.5
Intake Air Temperature(¡£C)-4
Air Flow Rate from Mass Air Flow(g/s)14.00
Absolute Throttle Position(%)10.2
Commanded Secondary Air StatusOFF
Location of Oxygen SensorsB1S12--B2S----
Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.630
Short Term Fuel Trim Bank 1-Sensor 2(%)N/A
OBD requirements to which vehicle is designedOBD&OBDII
Equivalence Ratio (lambda)(Bank 1-Sensor 1)1.008
Oxygen Sensor Current(Bank 1-Sensor 1)(mA)0.016
Now I'm not the sharpest knife in the bulb box. (bad pun) But it looks like the engine is running rich for the long term trim. And the other oddball question? I can interpret the O2 sensor bank 2--that should be the one after the converter. (I would hope)
But I'm in the woods as to the bank-1-sensor-1 only showing current and not voltage? Should this not be a voltage reading I'm looking at?
I know this little bug has some issues and it appears to be running a bit on the rich side. Just looking for some information on why the tool would only report amps on the front sensor? Or am I missing something simple?
S-