P0430

Asked by Jan 23, 2014 at 03:41 AM about the 2004 Chevrolet Malibu LT

Question type: Maintenance & Repair

I have a 2004 chevy malibu lt 3.5L V6
I used to get a P0401 code saying egr flow is insufficient, so i removed the engine head
and cleaned the egr passage as best as i could, it was completely packed before I
cleaned it. Then I put it all back together and reattached everything..I did have one extra
screw, I have no clue where it went, i looked for like a half hour, but im quite certain
everything is properly attached..
I then took a test drive and got an error code for P0430 "Catalyst System Efficiency
Below Threshold "

I should also note that under the ABS section on the trouble code check I got J2100,
not sure why but dont think it has anything to do with this.



Is it possible I did something wrong? or didnt reconnect something properly?

1 Answer

254,245

P0430 is caused by exhaust leaks, see if you can find where that screw went and inspect for exhaust leaks.

Your Answer

Chevrolet Malibu Experts

  • #1
    tenspeed
    Reputation
    2,110
  • #2
    T_S_T
    Reputation
    2,030
  • #3
    Tom Demyan
    Reputation
    1,500
View All

Related Models For Sale

Used Chevrolet Impala
517 Great Deals out of 33,770 listings starting at $950
Used Honda Accord
1,099 Great Deals out of 61,485 listings starting at $999
Used Toyota Camry
1,056 Great Deals out of 71,326 listings starting at $295
Used Nissan Altima
1,047 Great Deals out of 75,008 listings starting at $1,200
Used Hyundai Sonata
717 Great Deals out of 49,892 listings starting at $790
Used Kia Optima
469 Great Deals out of 29,206 listings starting at $2,450
Used Honda Civic
826 Great Deals out of 72,772 listings starting at $1,000
Used Nissan Maxima
282 Great Deals out of 23,068 listings starting at $899
Used Chevrolet Equinox
1,010 Great Deals out of 69,931 listings starting at $2,200
Used Chrysler 300
329 Great Deals out of 17,770 listings starting at $1,000

Used Cars For Sale

2017 Chevrolet Malibu LT For Sale
293 Great Deals out of 14,971 listings starting at $12,991
2016 Chevrolet Malibu LT For Sale
47 Great Deals out of 2,078 listings starting at $11,995
2015 Chevrolet Malibu LT For Sale
130 Great Deals out of 3,046 listings starting at $8,999
2014 Chevrolet Malibu LT For Sale
57 Great Deals out of 1,626 listings starting at $6,991
2013 Chevrolet Malibu LT For Sale
14 Great Deals out of 636 listings starting at $7,450

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.