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2000 lincoln ls with code po430(catalyst efficiency below threshold bank 2) which side is bank 2? driver or passenger?

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Passenger

Posted on Nov 12, 2010

  • Randy Ohler Nov 12, 2010

    I'm sorry yours is the driver side, Made by ford they did theirs oppisite for some reason

  • rcrowley Nov 12, 2010

    thanks,I appreciate the info.Looks like i'll be changing a catalytic converter.

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Where should i find this sensor P0342?


EXHAUST RELATED ERROR CODES

There are 711 possible PO generic DTC error codes. Only 7 of the 711 codes are exhaust related.

PO401: Insufficient EGR Flow

PO402: Exhaust Gas Recirculation (EGR) Excessive Flow Detected

PO410: Secondary Air Injection System Malfunction

PO420: Catalyst System Efficiency Below Threshold (Bank 1)

PO421: Warm-Up Catalyst Efficiency Below Threshold (Bank 1)

PO430: Catalyst System Efficiency Below Threshold (Bank 2)

PO431: Warm-Up Catalyst Efficiency Below Threshold (Bank 2)

THINGS TO ASK YOURSELF OR YOUR CUSTOMER

Have there been any driveability or performance issues with the vehicle, have there been any recent repairs or tune-up work performed, if so was the check engine light reset and were the codes recorded on previous repair orders.

Do not rely on scan tool data alone. In most applications, the customer will have the check engine light reset prior to repair. If the original cause of converter failure is intermittent, only the catalyst failure code may show up (masking the original reason for converter failure).

Nov 04, 2012 | Chevrolet Epica Cars & Trucks

1 Answer

What does a po430 code mean on a mercury cougar


EXHAUST RELATED ERROR CODES

There are 711 possible PO generic DTC error codes. Only 7 of the 711 codes are exhaust related.

PO401: Insufficient EGR Flow

PO402: Exhaust Gas Recirculation (EGR) Excessive Flow Detected

PO410: Secondary Air Injection System Malfunction

PO420: Catalyst System Efficiency Below Threshold (Bank 1)

PO421: Warm-Up Catalyst Efficiency Below Threshold (Bank 1)

PO430: Catalyst System Efficiency Below Threshold (Bank 2)

PO431: Warm-Up Catalyst Efficiency Below Threshold (Bank 2)

THINGS TO ASK YOURSELF OR YOUR CUSTOMER

Have there been any driveability or performance issues with the vehicle, have there been any recent repairs or tune-up work performed, if so was the check engine light reset and were the codes recorded on previous repair orders.

Do not rely on scan tool data alone. In most applications, the customer will have the check engine light reset prior to repair. If the original cause of converter failure is intermittent, only the catalyst failure code may show up

Nov 04, 2012 | Cars & Trucks

1 Answer

Code po430 came up


P0430 FORD - Catalyst System Efficiency Below Threshold Bank 2

Possible causes- Three way catalyst converter Bank 2 worn out
- Exhaust tube leaks
- Intake vacuum leaks
- Fuel injectors may be faulty
- Fuel injector leaks
- Spark plugs may be faulty
-
-

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1 Answer

Po430 trouble code


P0430 - Catalyst System Efficiency Below Threshold Bank 2. The most common cause it the three way catalyst converter Bank 2. Common Problems That Trigger the P0430 Code

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1 Answer

What do these codes mean ? po430 po420 po306 for mercury cougar 1999


P0430 code is(catalyst efficiency below threshold on bank 2)
P0420 code is((catalyst efficiency below threshold on bank 1)
P0306 code is(cylinder 6 misfire detected)

Dec 13, 2011 | 1999 Mercury Cougar

1 Answer

98 gmc sierra 1500 5.7 po430 code


Below is a general description of the problem. Check the following possibilities and we can go from there.


DTC

P0430 - Catalyst System Efficiency Below Threshold (Bank 2)

Description
Indicates Bank 2 catalyst system efficiency is below the acceptable threshold.

Possible Causes
Use of leaded fuel
Damaged Oxygen Sensors
Malfunctioning ECT
High fuel pressure
Damaged exhaust manifold
Damaged catalytic converter
Oil contamination
Cylinder misfiring
Downstream Oxygen sensor wires improperly connected
Damaged exhaust system pipe
Damaged muffler /tailpipe assembly
******** spark timing

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1 Answer

Code of PO174 1 system too lean (bank 1) Code PO420 Catalyst efficiency below threshold (bank 1) Code PO430 Catalyst efficiency below threshold (bank 2)


hi,my friend, you can try,

Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.

Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. The waveform of the sensor behind the converter should be more steady).

Inspect the downstream heated oxygen sensor (HO2), replace if necessary

Replace the catalytic converter

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1 Answer

Error code p0340 i,m haiving egniton truble?


po430 is catalyst efficiency below threshold ( bank 2 ). in most cases its a worn out convertor. po430 -possible causes
The catalytic converter is no longer functioning properly
An oxygen sensor is not reading (functioning) properly
There is an exhaust leak, good-day !!

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2 Answers

The obd II code is po 430. what does that have to do with the catalyst system or emmission?


PO430--Catalyst System Efficiency Below Threshold (Bank 2)

On your vehicle ,that would be a bad exhaust converter
on the drivers side

Bank 1 would be where the #1 cylinder is
Bank 2 the opposite on a V6 or V8

Your converter is about 12 or 13 years old
They should last about 12 to 15 in my opinion

I would replace both converters and both O2
Sensors--if they have 100,000 miles on them

The Catalyst is the material inside that converts
the exhaust gases to Water Vapor, H2O, and reduces
HC,CO,and NOX

Feb 14, 2011 | 1998 Mercury Grand Marquis

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