Question about Nissan Altima

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How much do tune ups cost for 2002 altima and do they also check the catalytic converter while doing the tuneup? Amanda

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Those are questions for a repair shop

There is no check list to follow, when you go
to these shops

They only do what you ask them to do

So bone up on your knowledge or nothing
will get done

Posted on Apr 01, 2011

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Posted on Jan 02, 2017

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Occassional bucking of car....

code p 0420 refers to cat converter system bank 1 --efficiency below threshold====causes --cat converter===wiring ===HO2S ( heated oxygen sensor in the exhaust manifold before the cat converter
would not waste money as the ecm does 60 tunes up every minute and adjust whatever is needed to maintain optimum tune for the engine
replace the heated oxygen sensor to allow the ECM to maintain the tuneup and rep[lace the cat converter if it is faulty

May 12, 2017 | 2002 Honda Accord

1 Answer

I recently had my altima serviced by the dealer. They replaced the catalytic converter as well as the oxygen sensor, which cost me $1000.00. Approx. 4 days later , while driving on the highway, my check...

Just kidding. Take it back to the dealership and demand that they find out what the check engine light is for. They may have just put the catalytic converter on wrong.

Oct 03, 2010 | 2003 Nissan Altima

1 Answer

How much will it cost for a tune up and catalytic converter? I need a quote.

This is just a rough estimate.....

Tune-up: $150plus

Catalytic converter: $80-$600plus

Please rate and comment - Thank You

Sep 23, 2010 | 1993 Oldsmobile Achieva

2 Answers

When should you do a tune up for a 2003 vw beetle and how much is it usually

Hello. A tuneup is needed every 50-60,000 miles or once every 4 years. The cost will generally be about $150. Call around and get prices from at least three garages. J.

Jun 16, 2010 | 2003 Volkswagen New Beetle Convertible

2 Answers

What is an code po300 and po420 and what do i need to do i have an 2002 nissan altima

The p0300 code is a random missfire code sometimes caused by bad spark plugs and wires, if you have not done a tune up, it's time for one. now, the p0420 code is for catalyst efficiency below threshold, basically, your catalytic converter is bad and may need to be replaced. Sometimes repairing the random missfire can eventually clear the p0420 code. your car is not burning fuel properly, therefore the catalytic converter is getting dirty. Also, if you notice blue smoke coming out the tail pipe, then that's the cause for a failing catalytic converter as oil is getting to the combustion chamber and being burned off through the exhaust.

Mar 09, 2010 | 2002 Nissan Altima

2 Answers

Check engine light flashes

Take it to AutoZone or Oreilly's and have them read the code. Report back here.

Dec 09, 2009 | 2002 Mercury Grand Marquis

1 Answer

2002 altima burns oil about a quart every 300 miles. I Just got this car engine is very clean . I had oil changed and they talked me into haveing an oil flush ran through the engine with the oil change....

Check your muffler, is it thick black? The engine is burning oil, you need new engine if the cylinder ring is bad (compression test), and new catalytic converter that poisoned by excessive oil.

Many altima 02 has pre-catalytic converter failure that cover under 8 years/80k miles emission law. The materials in the pre-cat destroy the engine. It is well known problem and you can get new engine under this warranty

Oct 24, 2009 | 2002 Nissan Altima

1 Answer

2002 Altima engine/Catalytic converter problems

check engine light has nothing to do with oil level. Only the red engine light does. It sounds like you are burning a lot of oil and it is poisoning your catalytic converter. Your converter is killing itself trying to treat all the unburned oil that is coming to it. It will get so hot that it swells inside and clogs it up. Why you are burning oil is the question. Only 3 possibilities. Past the piston rings, past the valve stem seals or a plugged pvc valve and its hoses. Clean the PVC hose and change the PCV first. Changing the cats now will just kill them again until you fix the oil burning.
Autozone will do free scan test for fault codes by the way.
PCV won't show up there though.
You can buy cheap engine on ebay or at page with asterisk is lowest price.

May 29, 2009 | 2002 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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