Question about 2005 Nissan Altima

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How do i bypass the catalytic converters on 2005 altima 2.5

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6 Suggested Answers

6ya6ya
  • 2 Answers

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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roniecon
  • 6826 Answers

SOURCE: DOES THE 2004 ALTIMA HAVE PROBLEM WITH CATALYTIC

Yes it does.

Posted on Jul 10, 2010

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keemo68
  • 1263 Answers

SOURCE: catalytic converter question

you must have a duel exuast the #2 converter is on the right center of the vehicle underneath the floor pan.

Posted on Aug 30, 2008

AaronTech
  • 115 Answers

SOURCE: have had two catalytic converters go out in last 8 months

Catalytic converters should last the life of the vehicle. usually they are damaged be a poorly running engine. most common causes are lean misfire causing unburnt fuel and air to get into the convert and ignite there. coolant or oil burning. engine running too hot (lean) overheating converters.

was it the same converter that went twice? did they change them at the same time? where the pre-converters? is the engine light on?

Posted on Jun 26, 2009

charleshucke
  • 1114 Answers

SOURCE: What causes the P1278 code

CODE P1278- HEATED OXYGEN SENSOR 1 SLOW RESPONSE.POSSIBLE CAUSE EXHAUST LEAK AT EXHAUST MANIFOLD OR PIPES.FAULTY PRESSURE REGULATOR LEAKING OR FUEL INJECTORS LEAKING.AND FAULTY TPS SENSOR

Posted on Jan 23, 2011

  • 237 Answers

SOURCE: 2005 Nissan Altima service engine

one thing you can bet the house on ....if a nissan sets a cat converter code...it needs a cat converter...trust me on this.in the last 10 yrs. as nissan master tech i have seen no other cause!

Posted on Mar 18, 2011

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1 Answer

2005 Nissan Altima 2.5L - where is the heated oxygen sensor number 2 located


Oxygen sensors are mounted either side of the catalytic converter. Number 1 is mounted before the cat in the down pipe and the Number 2 is in the exhaust pipe just after the cat, think the number 2 is the downstream.

Jan 05, 2014 | 2005 Nissan Altima

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Clogged catalytic converter


Replace with genuine unit or you will have cpu problems. Stop what ever is causing it to block up.( Leaded fuel or incorrect oil or excessive oil consumption)

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I have a 2005 altima 4 cyl., when starting it has a rough idle so i sprayed throttle body cleaner in the throttle and wiped it clean then started the car and sprayed some more throttle body cleaner into...


Problems with Nissan 2005 Altima include-Crank shaft position sensor with ECU reset, ECU Factory reset from Dealer, Low Fuel pressure requiring fuel pump replacement, Replacement of ignition coils causing misfire during start-Catalytic Converter Recall-Oxygen sensor on exhaust-Leaking Valve cover gasket-Radiator failure due to plastic top & Bottom (Constantly adding water to reservoir?)

Aug 28, 2011 | 2005 Nissan Altima

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2005 Nissan Altima service engine light came on, Had a reading = P0420, #1 aa1 Large vacumm leak, #2 aa2 Fuel system fault, #3 aa3 Ignition system fault and #4 aa4 Failed Bank 1 catalytic converter. Any...


one thing you can bet the house on ....if a nissan sets a cat converter code...it needs a cat converter...trust me on this.in the last 10 yrs. as nissan master tech i have seen no other cause!

Mar 18, 2011 | 2005 Nissan Altima

1 Answer

Check engine light is on in my 2005 altima 2.5 got it scanned and the codes i got were P0335 /P0725/P0420 also car keeps stalling


po335 and 725 bad crank sensor and this is also reason for stalling.po 420 catalyst has lost efficiency....needs new catalytic converter ...covered under 8year 80000 mile emmisions warranty.

Feb 08, 2011 | 2005 Nissan Altima

1 Answer

I have a 2002 toyota tacoma and a code of p0420 and it is cat effciency below threshold (bank 1) which one there are two cat is it the front or the rear one need to find out be for spend $$$$ on the wrong...


before changing a rather expensive catalytic converter i would first make sure that the o2 sensor is working correctly, as this sensor will say the cat is bad when it is the sensor it self that has become faulty. there are 4 sensors 2 before the catalytic converters and 2 after the cats, if these become dirty or faulty they will give you that same code.
in any case bank one is usually the right side of the engine and would be the first cat in the system.

Dec 22, 2010 | 2005 Nissan Altima

3 Answers

Receiving engine code p0420 on my 2005 altima 2.5 s


A p0420 code indicates a Catalytic System efficiency failure, Bank 1.
Basically, the computer is seeing reduced efficiency of the catalytic converter or one of it's components (such as an 02 sensor)

There may be a few root causes, such as a faulty oxygen sensor, faulty coolant temperature sensor, faulty converter, Large exhaust leak, or retarded (slow) timing.

Nov 30, 2009 | 2005 Nissan Altima

1 Answer

I have a P0420 code on a nissan help me fix it


catalytic converter efficiency below threshold bank 1 possible problems are engine coolant temp sensor or o2 sensor not reading properly or front and behind catalytic o2 sensors read similar-- ****** spark timing--damaged or leaking /exhaust manifold/catalytic conv/exhaust pipe. check for leaks or damage to exhaust repair or replace as necessary

Nov 15, 2009 | 2005 Nissan Altima

2 Answers

Poor fuel mileage with my 02 nissan altima


yes it very possible because the catalytic converter is part of the emissions and you need to ask yourself when was the last time you had a good tuneup drive belt,sparks and wires if needed and a fuel filter and a pvc valve.

Feb 08, 2009 | 2005 Nissan Altima

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