1998 Nissan Altima, Trouble code P0171, Ongoing problem

jtakesh
35

Asked by jtakesh Nov 19, 2012 at 08:13 AM about the 1998 Nissan Altima GXE

Question type: Maintenance & Repair

As before the P0171 code keeps popping up, I changed the front Oxygen Sensor, Air Mass Mater, fuel filter & finally found the PCV valve, when I changed the PCV Valve the car ran much better and the code didn't come back up, but after a couple of days the car started running the same, poor rough idle, poor gas milage & and a gas/exhaust smell in the car. Could the PCV valve have clooged up so fast, possibly because of gunk in the line or where the valve plugs into?

3 Answers

Ronald Dopwell
255

how often do you change your Oil ? is there any Sludge in the Engine ? you may be looking at a lengthy overhaul of your engine internals if there is a Sludge buildup

2 out of 2 people think this is helpful.
Best Answer
jtakesh
35

There should not be any sludge in the engine, I or my son changes the oil once every 3 months and there is usually not 3,000 miles on it by that time, this engine was replaced about three years age because the timing chain broke and trashed the original engine, the replacement engine was used, about 68,000 miles on it, when installed, the oil was changed @ 1,000 miles then at a maxium of 3,000 there after, can't understand if the engine is sludged up, I'll take the PCV valve out again tonight to see if it'e clogged up, if it is, I guess there's a problem.

Robert Lavallee
1,335

look vor vacuum leaks or intake or exhaust leaks. p0171 lean means theres too much oxygen and most likely is pulling air in at the intake manifold gasket or if you're smelling it inside car could be exhaust leak which may be sucking air in there causing the oxygen sensor to read too much oxygen and setting codes. so inspect intake and exhust for leaks.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 1998 nissan altima PO 300 3 answers

    I have a 98 Nissan Altima that has intermittently give me a code PO300. I have replaced the plugs, wires, distributor and cap. Still has the same problem. Don't know where to go from here.

    1998 Nissan Altima GXE

    -

    Maintenance & Repair

  • Nissan Altima throws code P 505 1 answer

    98 Altima had total engine rebuilt. Head was warped, machined smoothed, runs great. Now engine light on, throws code P 505 and needs Ca. smog cert. Tech said it will be about $400.00. He let me kn...

    1998 Nissan Altima GXE

    -

    Maintenance & Repair

  • 1103 trouble code service reminder or problem 1 answer

    about every other month check eng light comes on with code 1103 says to take to dealer

    1998 Nissan Altima XE

    -

    Maintenance & Repair

  • how much will it cost to fix a blown head gasket on a 1994 nissan altima ? 2 answers

    cost to replace a Head gasket for a 1994 nissan altima

    1994 Nissan Altima GLE

    -

    Maintenance & Repair

  • Performance 3 answers

    what do you think of NISSAN ALTIMA 2008?

    2008 Nissan Altima 2.5

    -

    General

Altima
Looking for a Used Altima in your area?
CarGurus has 77,051 nationwide Altima listings starting at $1,000.
ZIP:

Search Nissan Altima Questions

Nissan Altima Experts

#1 Tom Demyan
Tom Demyan
Reputation 620
#2 tenspeed
tenspeed
Reputation 340
#3 Cassie Sapphire
Cassie Sapphire
Reputation 180
View All

Related Models For Sale

Used Nissan Maxima"
703 Great Deals out of 20,039 listings starting at $999
Used Honda Accord"
1,537 Great Deals out of 64,973 listings starting at $950
Used Toyota Camry"
1,987 Great Deals out of 73,956 listings starting at $1,250
Used Honda Civic"
930 Great Deals out of 53,911 listings starting at $1,900
Used Nissan Sentra"
769 Great Deals out of 31,829 listings starting at $1,292
Used Toyota Corolla"
1,428 Great Deals out of 51,067 listings starting at $995
Used Hyundai Sonata"
1,250 Great Deals out of 52,261 listings starting at $1,000
Used Chevrolet Malibu"
1,807 Great Deals out of 66,397 listings starting at $1,200
Used Acura TL"
371 Great Deals out of 6,805 listings starting at $1,499

Used Cars For Sale

2015 Nissan Altima For Sale
38,983 listings starting at $15,995
2014 Nissan Altima For Sale
251 Great Deals out of 8,664 listings starting at $14,488
2013 Nissan Altima For Sale
472 Great Deals out of 7,249 listings starting at $11,795
2012 Nissan Altima For Sale
316 Great Deals out of 5,819 listings starting at $9,977
2011 Nissan Altima For Sale
250 Great Deals out of 3,953 listings starting at $8,895