2000 galant poped p0171 code

Asked by Apr 02, 2012 at 03:14 PM about the 2000 Mitsubishi Galant ES

Question type: Maintenance & Repair

Recently my 2000 mitsubisi galant 2.4l jad the service engine soon light come on. After i got it checked out they
gave me the trouble code p0171 Rich fuel mixture. They said it could be a vacume leak, bad maf, misfire, bad o2
sensors. My mechanic said there was no leak, misfire and that the maf was fine, the only thing left were the o2
sensors so i replaced them both but the light wont go away. What could it be?

2 Answers

Code P0171 means the vehicle computer is showing the air fuel mixture is lean, either too much air, or not enough fuel. So, it is adding fuel to try and correct it. There are many things that can cause this code and some of them can be difficult to diagnose and expensive to repair. However, sometimes it can be a simply problem, with a simple repair. If your a do-it-yourselfer, try this first. It's a common problem and you might just be able to save yourself some money. Check your PVC valve connection for a broken or leaky hose. Vacuum leaks are a pain to find, but look in the obvious places first. Good luck

2 of 2 people found this helpful.

Thanks. I checkthe hose and replaced the pcv valve but it still wont go away. Now it gives me p0100 and p0170. Its not the p171 any more.

1 of 1 people found this helpful.

Your Answer

Mitsubishi Galant Experts

  • #1
    Tom Demyan
    Reputation
    790
  • #2
    dandyoun
    Reputation
    780
  • #3
    Daniel Foster
    Reputation
    590
View All

Related Models For Sale

Used Honda Accord
1,126 Great Deals out of 71,728 listings starting at $1,100
Used Nissan Altima
1,271 Great Deals out of 77,327 listings starting at $1,695
Used Toyota Camry
1,047 Great Deals out of 85,916 listings starting at $800
Used Mitsubishi Eclipse
14 Great Deals out of 1,144 listings starting at $1,799
Used Mitsubishi Lancer Evolution
10 Great Deals out of 570 listings starting at $12,999
Used Ford Mustang
581 Great Deals out of 38,593 listings starting at $1,895
Used Honda Civic
778 Great Deals out of 60,175 listings starting at $950
Used Audi A4
318 Great Deals out of 12,352 listings starting at $1,899
Used Chevrolet Camaro
442 Great Deals out of 31,242 listings starting at $1,450
Used Nissan Maxima
313 Great Deals out of 21,702 listings starting at $999
Used Chevrolet Malibu
1,060 Great Deals out of 61,019 listings starting at $880

Used Cars For Sale

2012 Mitsubishi Galant ES For Sale
51 listings starting at $5,988
2011 Mitsubishi Galant ES For Sale
30 listings starting at $3,800
2010 Mitsubishi Galant ES For Sale
11 listings starting at $3,995

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.