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Cat 988h how to trouble shoot code-060008 -030 -0826.08 -082

Code-0351.03 -082 -0350.03 END

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Posted on Jan 02, 2017

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SOURCE: i have 2 trouble codes on my 2002 dodge ram 1500

9 times out of then this points to bad cat and the cat will need be changed.

Other things that can cause this code are an exhaust leak before the front 02 sensor or the car in need a of a tuneup badly. Generally if this problem is sensor related you would have other codes also.

If you want to know of the cat is bad the computer stores data and when you have a data scanner that can access MODE 6 the data can indicate whether your cat is the issue or not. Its a bummer you have to have this diagnosed by a professioal to get this data since the scanners do not get loaned out.

I have heard of alot of cats that were replaced for no reason because of other reasons so be cautious on how to address this because your not going to be able diagnose this without a data scanner and all the specifications for the sensors.

Posted on Mar 30, 2010

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We have a cat 988h and it has lost all steering primary and secondary what do you think


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could be broken drive connection , valves or lack of oil

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Does pouring alcohol in the gas tank turn off the trouble code for a 2000 Cadillac deville with the code of p0420.


. NO it will not . code po420 refers to cat converter system , bank 1--efficiency below threshold===causes cat converter---wiring--HO2S 2

Have the cat converter checked for failure and replace if necessary. Check the operation of the heated o2 sensor before that cat converter.

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Mass air flow sensor location and diagnos


Look at the oxygen sensor. If the map was bad you'd get a overheated catalytic converter.

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I have a 2001 hyundai elantra and its shooting codes p0422 and p0302 i keep seeing 422 is the cat but is 302 related in anyway or could it be bad sensors anything that can save me from having to repla


Here's a link to your P0302 code.Trouble Code: P0422

Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:


Air leaks at the exhaust manifold or in the exhaust pipesCatalytic converter is contaminated, damaged or has failedFront HO2S is older (aged) than the rear HO2S (HO2S is lazy)Front HO2S or rear HO2S is contaminated with fuel or moisture

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How to trouble shoot code p0360


P0360 - Ignition Coil '10' Primary/Secondary Circuit Malfunction

Ignition Coil Primary/Secondary harness is open or shorted
- Ignition Coil Primary/Secondary circuit poor electrical connection
- Faulty Ignition Coil Primary/Secondary
- Faulty Engine Control Module (ECM

Read more: http://engine-codes.com/p0360.html#ixzz21fHBlyUw

Jul 25, 2012 | Chevrolet Silverado 2500HD Cars & Trucks

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I am performing a diagonstic in car trouble shooting by checking the check engine light. I have two codes that keep coming up the first code is 12 and the second code is 21 which has to do with the O2S. My...


O2 sensors are screwed in to the exhaust. There should be one before the catalytic convertor to help the computer determine fuel strategy and one after the catalytic converter to monitor cat. conv. efficiency. Follow the exhaust and you will find them. By the way code 12 means you entered the diagnostic mode code 55 means you finished the cycle.

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1 Answer

I have 2 trouble codes on my 2002 dodge ram 1500 codes p4032 main catalyst below threshold bank2 aqnd p0420 catalyst system efficiency below threshold. how do i trouble shoot the cat or sensor fault


9 times out of then this points to bad cat and the cat will need be changed.

Other things that can cause this code are an exhaust leak before the front 02 sensor or the car in need a of a tuneup badly. Generally if this problem is sensor related you would have other codes also.

If you want to know of the cat is bad the computer stores data and when you have a data scanner that can access MODE 6 the data can indicate whether your cat is the issue or not. Its a bummer you have to have this diagnosed by a professioal to get this data since the scanners do not get loaned out.

I have heard of alot of cats that were replaced for no reason because of other reasons so be cautious on how to address this because your not going to be able diagnose this without a data scanner and all the specifications for the sensors.

Mar 30, 2010 | 1998 Dodge Ram 1500 4WD

1 Answer

Ford Explorer 1998 4.0 sohc Diagnostic trouble code P0420.. I was told two different definitions. 1- oxygen sensor and 2 left side catalytic converter


If you don't have poor gas milage and loss of power, the cat is not restricted and not at fault, however, an engine misfire can also trigger that code.
Change the 02 sensor down by the cat first,( it's cheaper than a cat), see if that clears the code, if not, then go for the cat. You will already have a new 02 sensor, so that will eliminate those two. Hope this helped.

Mar 04, 2010 | 1998 Ford Explorer

2 Answers

Trouble code 420


That code's definition is "catalyst system efficiency is below threshold" - basically means that the car believes your catalytic converter is not working properly. It could be that the cat is clogged, but it also could be that your secondary oxygen sensor (behind the cat) is bad - that's what is used to determine how well the cat is working. Since an O2 sensor is more of a wear-and-tear item than a cat converter, I'd change that instead, clear the code, and see if it comes back.

Nov 07, 2009 | 1996 Subaru Legacy

1 Answer

Service engine light comes on , p0420 code


the light can be caused by any one or combination of over 200 trouble codes, go to any kragen or Autozone parts store and ask for a trouble code test, it is free, then record the code(s) they come up with and post them back on fixya

Apr 19, 2009 | 2002 Pontiac Firebird

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