Announcement

Collapse
1 of 2 < >

ANY BUYING/SELLING IN THIS FORUM WILL RESULT IN AN INSTANT BAN!

Read the rules: http://www.cb7tuner.com/vbb/showthread.php?t=43956

Myself, and the other mods have been very nice and lenient with the rules. We have been deleting threads, and giving out warnings. Some members didn't get the clue and re-posted over and over... Now ANY member buying or selling in this section will be banned... No IF's AND's or BUT's.
2 of 2 < >

Beginner Forum Rules - EVERYBODY read! (old and new members alike!)

Beginners start here. Once you have 30 worthwhile posts (off topic doesn't count) you may post outside of the Beginner forums. Any "whoring" (posting simply to raise your post count) will return your count to 0, or result in a ban.

These are the rules. Read them. Live by them.

1) Absolutely NO flaming! "Flaming" is an outright attack on a member. ALL questions are encouraged to be asked here, no matter how basic. Members with over 30 posts will be subject to a ONE WEEK ban if caught flaming in this forum (and yes, moderators can read deleted posts). Members with under 30 posts will be subject to a ONE DAY ban.

2) Use appropriate language. Racial or sexual slurs will not be tolerated. A ban will be issued at the discretion of the cb7tuner.com staff.

3) No items may be sold in the Beginner forums. Any "for sale" threads will be deleted.

4) Temporarily banned members will be PERMANTLY banned if they are found posting on another account.

The rules can and will be added to. Any updates will be marked in the title.

The rules for the overall forum can be found here:
http://www.cb7tuner.com/vbb/forumdisplay.php?f=144
Read them. You will be expected to follow them.
See more
See less

Best way to lower CO rating?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Best way to lower CO rating?

    So I went to emission to take the test and passed all the test except for that. Which caused me to fail. The limit is 1.20 and mine was 3.02. Is there a way to go about this to bring it down. I did a F20b swap and I am running a p28 with a phearable.net chip and it is tuned a little rich.

    STANCE|WORKS

    #2
    usually o2 sensor, or map sensor controls air fuel ratio. tight valve lash is an indirect contribution.

    whats the other numbers? dyno test or two speed idle?
    I <3 G60.

    0.5mm Oversized Stainless valves and bronze guides available. Pm me please.

    Comment


      #3
      It was the tail pipe test

      STANCE|WORKS

      Comment


        #4
        I was having trouble passing my truck a couple years ago...Last time i went through emissions with my Ford Bronco my father told me to use a gallon of de-natured alcohol (got it at ACE Hardware for ~$10).

        Worked like a charm for me. I just dumped it all in about 5miles before the test so it has a chance to mix with the fuel. I can't say it'll work for you, but it was the quickest way, for me, to lower the PPM.


        Form.Follows.Function

        Comment


          #5
          nost likely an o2 sensor that is lazy
          I <3 G60.

          0.5mm Oversized Stainless valves and bronze guides available. Pm me please.

          Comment


            #6
            Originally posted by wed3k View Post
            nost likely an o2 sensor that is lazy
            I agree on the O2 sensor, could also just be a rich tune.

            A little E85 to add some ethanol to the mixture will help a little.

            My Wiretuck/ Insane engine bay
            member ride thread
            11.86@120mph T66 turbo 612hp F22A
            DIVULGE MOTORSPORTS
            People can hate all they want, my f22 is faster than yours.
            I have literally been on this site for 10 years, I know what i am talking about!
            John 10:18 "No one takes it from me, but I lay it down of my own accord. I have authority to lay it down and authority to take it up again. "

            Comment

            Working...
            X