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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.
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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.

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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
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Running Rich

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    #1

    Running Rich

    hey im in need of some help, my cb7 is running pretty rich and it blows black smoke out of the tailpipe so i am wondering what it could be that is making it run so rich? its a 91 lx with 145000 miles and i recently changed the water pump timing belt and other belts and seals, im not sure if that would really affect anything
    well any help would be greatly appreciated
    Tags: None
    #2
    are you throwing a check engine light and when was the last time you changed your O2 censor?

    "Real intelligence is like a river; the deeper it is, the less noise it makes.”

    Click Me

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      #3
      Check timing of the engine

      Comment

        #4
        Originally posted by NorcoAccord
        are you throwing a check engine light and when was the last time you changed your O2 censor?
        No CEL is not on and i havent changed my O2 censor, mabey ill try that

        Comment

          #5
          Originally posted by bruno8747
          Check timing of the engine
          ok ill try that too im pretty sure its timed right, wouldnt there be other symptoms of having it not timed right though?

          Comment

            #6
            could be a faulty or leaking fuel injector, bad spark plugs, ignition timming, ect. later.
            Avoiding dirt at all costs

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              #7
              Originally posted by TypeG
              could be a faulty or leaking fuel injector, bad spark plugs, ignition timming, ect. later.
              i had first thought it was a fuel injector, because it was smoking black before the timing belt and water pump change. How can i check the injectors? ill pull out the spark plugs to see if they need changing also thanks

              Comment

                #8
                check the condition of the plugs first. look for one or more to be extra clean than the others. this would point to injector leakage.

                pull out the injectors and check for a clean spot inside the intake manifold. (you should probally get a manual to follow the fuel relief procedures)normally there is black/brown gunk inside the intake runners and if the gas leaks around the injector seals, it will clean that goop away, so it will be super clean in one spot vs the other runners where there is no leak.

                a clogged air filter could also cause your car to burn to much fuel. later.
                Avoiding dirt at all costs

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