2005 altima 2.5 L. code p0300

Asked by Feb 07, 2017 at 03:09 PM about the 2005 Nissan Altima 2.5 S

Question type: Maintenance & Repair

I have a 2002 nissan altima 2.5L was running
rough at about 1500 rpm and ch3ck engine light
was flashing pulled codes had code for p0303
for misfire cylinder 3 so replaced #3 ignition coil
code p0303 went away and turned into code
p0300 for multiple misfire so replaced all spark
plugs also replaced all coil boots and had to
replace valve cover for spark plug #1 tube seal
leaking car ran fine for 1 day and now code
p0300 is back any opinions on what to do next

1 Answer

73,655

P0300 NISSAN - Cylinder Misfire Detected Random Cylinders...Possible causes; Faulty spark plug (s), Faulty ignition coil (s), Clogged or faulty fuel injector (s), Intake air leak, Fuel injectors harness is open or shorted, Fuel Injectors circuit poor electrical connection, Ignition coils harness is open or shorted, Ignition coils circuit poor electrical connection, Insufficient cylinders compression, Incorrect fuel pressure....The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem.

Your Answer

Nissan Altima Experts

  • #1
    Tom Demyan
    Reputation
    2,130
  • #2
    putolile
    Reputation
    730
  • #3
    Cassie Sapphire
    Reputation
    690
View All

Related Models For Sale

Used Nissan Maxima
286 Great Deals out of 23,061 listings starting at $899
Used Honda Accord
1,033 Great Deals out of 60,523 listings starting at $999
Used Toyota Camry
1,044 Great Deals out of 68,980 listings starting at $295
Used Honda Civic
802 Great Deals out of 72,084 listings starting at $1,400
Used Nissan Sentra
519 Great Deals out of 48,306 listings starting at $1,595
Used Toyota Corolla
869 Great Deals out of 56,853 listings starting at $1,099
Used Hyundai Sonata
718 Great Deals out of 49,081 listings starting at $790
Used Chevrolet Malibu
1,074 Great Deals out of 72,017 listings starting at $1,896
Used Ford Fusion
986 Great Deals out of 71,084 listings starting at $1,200
Used Kia Optima
480 Great Deals out of 28,959 listings starting at $2,450
Used Dodge Charger
415 Great Deals out of 27,419 listings starting at $2,495
Used Chevrolet Impala
480 Great Deals out of 33,615 listings starting at $777
Used Hyundai Elantra
477 Great Deals out of 41,022 listings starting at $1,995

Used Cars For Sale

2017 Nissan Altima 2.5 S For Sale
11 Great Deals out of 13,707 listings starting at $12,942
2016 Nissan Altima 2.5 S For Sale
54 Great Deals out of 3,080 listings starting at $10,626
2015 Nissan Altima 2.5 S For Sale
115 Great Deals out of 4,534 listings starting at $7,455
2014 Nissan Altima 2.5 S For Sale
101 Great Deals out of 2,432 listings starting at $3,900
2013 Nissan Altima 2.5 S For Sale
32 Great Deals out of 1,170 listings starting at $3,200

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.