Po430 trouble code

By the obd2 code extracted from the system with a scanner A is the right side/passenger B is the drivers side and you also need to know that bank 1 is the passenger side bank 2 is the drivers side for the O2 sensors and sensor 11 is the front one sensor 21 is the rear on bank 1 and sensor 12 is the front and 22 is the rear but sometimes they designate different numbers so always the odd numbered are on the passengers side and the even numbered on the drivers side and you have 4 O2/ oxygen sensors on a triton also 4.6's good luck stephen

It actually has 4, O2 sensors. One just below where the exhaust manifolds bolt to the exhaust system then one just in front of the convertor and one right after it. The reading for a PO420 and PO430 is low efficiency at bank 1 and 2
which could also be a bad convertor. However, the sensors are cheaper.

Referencing oxygen sensor or O2 sensor or 'lambda sensor':

B1S1 is 'bank 1', which is the passenger side cylinder bank on a V6 or V8.

S1 is the 'upper' or 'upstream' sensor, closest to the cylinder.

which engine there are 3,

G16, J20 and H25. 4 bank , 4bang, v6

all 02s have a connector about 1 foot from sensor. all.

my guess is you have the SOB, v6, it is a pistol

it looks like the engineer was asked, see if you can make it near impossible to change ! then make it the only connector on the

car with the lock , working backwards ! HE WON.



here is 1 page, just for this, issue, only one on the web. btw.

http://www.fixkick.com/sensors/O2%20sensor/25L/25L-O2-H3LL.html



getting them off the hidden brackets, is no JOY

takes like an hour each.



enjoy

and do ask questions.

replace only the front, (unless smog man makes you do rear)

or you get P042x codes,.

Bank 1 is side no 1 cylinder is located on bank to is opposite Sensor 1 before cat sensor 2 after

P0430 is a catalytic converter inefficiency code for bank 2.

You didn't list a year make and model but I do see you have a GM. It is not an O2 sensor. It is the catalytic converter. You can confirm this by watching O2 data with scan tool. If the downstream O2 sensor switches simular to the upstream than the Cat is no longer doing its job.

Bank 1 always refers to the same side of the engine as the number 1 cylinder. Bank 2 is the opposite side. again without a year make and model that is about as detailed as I can get.

Let me know if you have any questions and thank you for using fixya.com.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

yes it is

sounds like O2 sensors to me. I havent changed one on a mustang yet but I havent had any trouble with any others that I have done, they screw in like a spark plug but you will need a special tool, I hope this helps you.

PO430 Bank 2 Catalytic Efficiency Below Threshold. ...
bank2 is ur passenger side o2 sensor needs to be changed the one closest to catalytic converter

it's your alternator (64)
1 Engine control module malfunction
11 O2 sensor malfunction (Car usually runs weak when this code appears) (If a V6 this relates to the O2 sensor on the drivers side In a 4x4 Or the one at the back of the engine on a Galant)
12 Mass air flow sensor circuit malfinction
13 Intake air temperature sensor (Comes on if you have chucked the sensor away to fit some big fancy K&N induction kit!)
14 Throttle position sensor fault
21 Engine temp sensor malfunction (Check the spark plugs too because they carbon up if this sensor is causing the car to run rich)
22 Crankshaft position sensor (Try cleaning the dirt off the end before replacing)
23 Camshaft position/distributor hall sensor (Common on Galant 1800)
24 Vehicle speed sensor
25 Barometric pressure sensor (Another name for the MAP sensor)
31 Knock sensor circuit
36 Ignition timing adjustment connector fault
41 Injectors circuit malfunction
44 Ignition coil/ignition amplifier cylinders 1 and 4
52 As above for 2 and 5 (on a V6)
53 As above for 3 and 6 (On a V6 too)
54 Immobiliser control module to engine control module malfunction (comes on if you have changed one or the other and not had them programmed in by Mitsi)
55 Idle speed control actuator malfunction (A good injector cleaner and a thrash up the motorway usually fixes this!)
59 O2 sensor (if you have a V6 this is the sensor on the passenger side ona 4x4 and the one at the front on a Galant etc.)
61 Transmission control module/engine control malfunction
62 Intake manifold air control actuator/position sensor malfunction
64 Alternator malfunction (remember to check under load and when revved up)
71 Traction control vacuum solenoid malfunction (check the pipes for leaks)
72 Traction control vent solenoid malfunction (usually blocked with dirt)