Question about 1996 Chevrolet Cavalier

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MY CHEVY FAILED EMMISSION ANDTHE DIAGNOSTIC TROUBLE CODES ARE P0440 HOW MUCH DOES IT USUALLY COST 2 FIX N HOW MUCH DOES A CATALYTIC CONVERTER AND REPAIR COST 4 THIS CAR

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I got a 48 state legal catylitic for 80 bucks at autozone i belive it was.

Posted on Jun 08, 2010

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  • Chevrolet Master
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Depends on who you go yo and what type the converter is. Sorry can't be more specific.

Posted on May 28, 2010

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1 Answer

Can catalytic converter cause a PO65O code


Pesky PO420 Codes - Eastern Catalytic

www.easterncatalytic.com/education/tech-tips/pesky-p0420-codes/
One of the most annoying is the persistent PO420 diagnostic code (Catalyst System ... not only shows its teeth when the catalytic converter is on the blink, but can also be ... Most, if not all, catalytic converter failures are caused by a problem or ...

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www.obd-codes.com/p0420
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How to get emission computer to reset.


emission light blinking ? engine symbol ? or check engine ? To fix it have DTC'S - diagnostic trouble codes checked . A flashing check engine means there is a catalytic converter damaging advent happening . Your best bet is take it an have it checked .

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Definition of Diagnostic Trouble Code P0420 Category: Powertrain Definition: Catalyst System Efficiency Below Threshold Bank 1Note: This definition of P0420 is applied to all manufacturers

Definition of Diagnostic Trouble Code P0430 Category: Powertrain Definition: Catalyst System Efficiency Below Threshold Bank 2Note: This definition of P0430 is applied to all manufacturers

As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0430 code is combined with other codes, try fixing the other codes first.

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Catalytic converter


your car is dumping too much fuel into combustion chamber-I'd try to get that fixed first-take it to a shop and let them diagnois-autozone,advanced auto will hook up for free-cheers Denny

Nov 05, 2013 | Volkswagen Polo Cars & Trucks

1 Answer

Trouble code p0420


The P0420 code means that the catalytic converter efficiency is below threshold. Since there are two oxygen sensors, above and after the catalytic converter, they together generate signals which are used to monitor the efficiency. However, if the catalytic converter is bad, the sensor after the converter will generate steady results, without any fluctuations.
You can replace the catalytic converter to overcome this problem. However, there are chances of the P0420 code to come up if there is any leak in the exhaust or the downstream o2 sensor (after the converter) is bad. Ideally, before spending on cat, you should try replacing the downstream sensor, which you can buy at low price from online stores like oxygensensorworld.com and also inspect for any small leaks in the exhaust system. Since the converter can cost you more, think of replacing it only if needed.

May 23, 2013 | Cars & Trucks

1 Answer

2006 chevy cobalt(85000 miles) check engine light comes on and stays on. I am getting the check engine light code p0420. Engine seems to be running smoothly.


http://www.obd-codes.com/p0420

TSB Number: 3316 NHTSA Number: 10017210 TSB Date: n/a Date Added to File: October 27, 2005 Failing Component:Electrical System Summary:Diagnostic trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement
TSB Number: 3316 NHTSA Number: 10017210 TSB Date: n/a Date Added to File: October 27, 2005 Failing Component:Electrical System Summary:Diagnostic trouble code P0420 may set on low mileage vehicles, or shortly after catalytic converter replacement
there is a service bulletin for this.

http://www-odi.nhtsa.dot.gov/cars/problems/tsb/results.cfm?start=1&SearchType=DrillDown&type=VEHICLE&year=2005&make=CHEVROLET&model=COBALT&vehtype=PC&typenum=1&component_id=0&summary=true

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2 Answers

Codes P0171, P0174, P0440


This is usually an oxygen sensor, replace the O2 sensor located above the catalytic converter before replacing the evaporator purge canister.

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2 Answers

Bad catalytic converter?


Log onto www.partstrain.com. I believe they have Catalytic converters for your pathfinder for under $200.00, there OEM direct fit which means no cutting other then removing the old bolts.
If it is the Catalytic converter you can always buy it from on line and have a muffler shop install it like speedy or midas. Make sure you ask for stainless bolts and nuts.
Before you go through all the trouble, re check the DTC codes. Most of the time it's the O2 sensors that go bad and i question the garage charging you so much for the replacement of a catalytic converter.
Good luck and keep me posted.

Jun 01, 2009 | 1994 Nissan Altima

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