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Po431,po421,po455 2002 stratus RT 3.0 has 2003 Eclipse engine

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 11 Answers

SOURCE: CHECK ENG LIGHT STILL ON

could be the knock sen-cor, map sen-cor. hope this helps.

Posted on Jan 14, 2009

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  • 15 Answers

SOURCE: code po421 how to fix

you have the same engine as my 2003 Galant, this should help... http://www.alldatadiy.com/alldata/AFI~V11366605~C40797~R0~OD~N/0/89012112/98644464/98644470/110938985/34853741/34857029/34857030/34857663/122915129/135964338/135975025

Posted on Mar 01, 2009

shop242
  • 214 Answers

SOURCE: 01 eclipse

P0 421= Catalytic Converter(s) Below normal flow
P0 455= Evap system leak .. Gas Cap or Carbon cannister or possibly evap lines
P0 123=Drive cycle Incomplete ( no Biggy )
P0506= Idle air control motor..
Doesnt sound like that big of a deal. at our shop.., we'd replace the converter(s) Check the gas Cap for the evap code.. And replace the Idle control motor. The code P0123 should be cleared By ODB2 at that point and should be good to go.. Lemmie know.. Thanks

Posted on Mar 11, 2009

  • 2 Answers

SOURCE: Code PO442 & PO455 on a 2003 Dodge Caravan with 3.3 engine

The problem is most likely to be with your vacuum line they put cheap rubber hose for this purpose. You should find a diagram at the front of the vehicle trace the hoses by this diagram. You most likely will find a bad piece of hose.

Posted on Jul 20, 2009

  • 12173 Answers

SOURCE: I'm getting 3 codes on my Audi A6 po118 Coolant

test the ect sensor wiring for loose or damaged connections and the sensor itself if bad replace the 421 and 431 codes might be related to the 118 code but test the o2 sensors and circuit wiring for damage or loose connections and also test cat converter may be clogging

Posted on Mar 05, 2010

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1 Answer

Why doesnt a code come up on my 1992 Cadillac Seville for a bad Cadillac converter


Anon, There can be codes thrown when converter is bad and a lot of time there will be codes/not always, why I do not know. To actually determine if converter is bad, there are test/diagnostic procedures.
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Troubleshooting bad catalytic converter and misfire DTC P0420
What causes catalytic converter to go bad Ricks Free Auto Repair Advice
1991 4 9L Poor Acceleration Vibration in gear Engine Miss NO CODES FYI
EXPLAINING TROUBLE CODES PO420 PO421 PO430 PO431

Jun 29, 2014 | 1992 Cadillac Seville

1 Answer

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

REPLACE CONVERTER 22,000 MILES AGO FOR CODE PO421 AND PO431. CAR IS GIVING SAME CODES AGAIN. IS THERE ANYTHING I SHOULD BE LOOKING AT INSTEAD OF CONVERTER? 2005 MITSUBISHI GALANT 2.4 LITER


when u get a code it can mean a # of things-never assume and just replace the part--computer systems today are integrated in circuits which means its complicated to diagnose--it may be something as simple as a tuneup or vacuum leak--get a manual on code troublshootn-in library or online

Jan 26, 2011 | Mitsubishi Galant Cars & Trucks

1 Answer

Getting codes PO431, PO421, PO128


2003 saturn vue, we dont have the engine size, the codes should be and are the same, po 128 means; cooling temp is out of spec, make sure the coolant is full, then replace the coolant emp sensor and make sure the connection is good, i would also replace the thermostant, this is a common code on these and most of the time its the coolant temp sensor or thermostant, ive learned to replace then both to avoid future engine lights with code po128. next we will check the code # po421, this code is that the computer sees that the cat converters are taking to long to warm up, code po 431 is also the same as po421, this code is related to the thermostant and sensor, the sensor give the computer the wrong temp readings and then the compuetr thinks the engine is hotter than it is and thinks the converters should be also hot like the motor but the coolant temp is giving a false reading, if you replace the coolant temp sensor and the thermostant and fill coolant , then reset the light and you will solve the problem, i hope this is helpful, also the sensor is located to the right of the engine if you are standing in front of the motor, heres a picture of the sensor, remember to check connector heres a pic of the connector, good luck.johnjohn2_20.jpg

Nov 10, 2010 | 2003 Saturn VUE

2 Answers

Engine light on- PO421 Catalyst system bank 1


taken from: http://forums.evolutionm.net/lancer-troubleshooting/349095-code-p0421-call-mitsu-before-you-do-anything.html

Code P0421- Call Mitsu before you do anything! I called my nearest dealership today and for those who dont know, if your check engine light is on and its showing fault code P0421 this may be from a factory recall on the warm-up converter and a PCM reflash. MILEAGE OF THE CAR DOES NOT EFFECT THIS RECALL. Anyone whos had problem with a dealership not doing the repairs because of mileage needs to contact another dealer or the owner of the dealership. This is what the service manager told me today so though I'd share. Getting mine fixed tomorrow at 10am, I cant wait.

For more information about this code Google "Fault Code P0421" You'll get tons of information Last edited by Swankzer; Jun 2, 2008 at 12:31 PM.

Sep 30, 2009 | 2002 Mitsubishi Lancer

3 Answers

I have a 2003 MPV with trouble code PO327 and PO431. What do these mean? Thank you.


P0327 Knock Sensor 1 Circuit Low Bank 1 or Single Sensor
P0431 Warm Up Catalyst Efficiency Below Threshold Bank 2


Sep 28, 2009 | 2003 Mazda MPV

1 Answer

Code po421 how to fix


you have the same engine as my 2003 Galant, this should help... http://www.alldatadiy.com/alldata/AFI~V11366605~C40797~R0~OD~N/0/89012112/98644464/98644470/110938985/34853741/34857029/34857030/34857663/122915129/135964338/135975025

Mar 01, 2009 | 2003 Mitsubishi Eclipse Coupe

1 Answer

CHECK ENG LIGHT STILL ON


could be the knock sen-cor, map sen-cor. hope this helps.

Jan 14, 2009 | 2003 Kia Sorento

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