What else causes Trouble code P0420?

Asked by Dec 07, 2010 at 07:25 PM about the 1995 Toyota Tacoma 2 Dr STD 4WD Standard Cab SB

Question type: Maintenance & Repair

Replaced both O2 sensors with Denzo oem. Replaced cat with toyota oem. No exhaust leaks. Reset computer. What else could cause the P0420 code?

1 Answer

40

I have a 1995 Toyota Tacoma rear drive 2.4 L and I had this problem since I purchased this vehicle used in 1999. I am now on my 4th catalytic converter and they recently cleaned both O2 sensors to no avail. I used an gas additive to clean the O2 and everything else inside and will work for 3 weeks and now I get the P0420 turn on every day. I read somewhere that this should have been a recall because of the throttle body design. Unless you want to use gas additives to clean your fuel or buy the real OEM catalytic converter.

4 of 4 people found this helpful.

Your Answer

Toyota Tacoma Experts

  • #1
    Tom Demyan
    Reputation
    1,160
  • #2
    BURT100
    Reputation
    370
  • #3
    F_O_R
    Reputation
    360
View All

Related Models For Sale

Used Ford F-150
2,942 Great Deals out of 230,829 listings starting at $1,300
Used Toyota 4Runner
355 Great Deals out of 29,588 listings starting at $1,500
Used GMC Sierra 1500
1,084 Great Deals out of 61,717 listings starting at $1,295
Used Ford Ranger
131 Great Deals out of 4,928 listings starting at $499
Used Jeep Wrangler
376 Great Deals out of 20,576 listings starting at $2,500
Used Dodge Ram 1500
295 Great Deals out of 10,490 listings starting at $1,995
Used Toyota Corolla
928 Great Deals out of 70,472 listings starting at $1,250

Used Cars For Sale

2018 Toyota Tacoma For Sale
17,261 listings starting at $23,291
2017 Toyota Tacoma For Sale
52 Great Deals out of 7,971 listings starting at $13,995
2016 Toyota Tacoma For Sale
97 Great Deals out of 2,777 listings starting at $16,050
2015 Toyota Tacoma For Sale
68 Great Deals out of 2,747 listings starting at $11,995
2014 Toyota Tacoma For Sale
54 Great Deals out of 1,453 listings starting at $9,500

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.