Question about 1988 Chevrolet Cavalier Z24

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Excessive gas use

1988 cheverolet goes thru a lot of gas..changed air filter didn't help, all the general stuffed checked over...tire pressure, etc;..what device controls gas flow to carb,?? thanks.

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  • mcgarrett74 Mar 05, 2009

    the 88 cavalier has fuel injection

  • Mike Butler
    Mike Butler May 11, 2010

    You did say carburetor. Sure it's carburetor & not fuel injected? Just checking due to, around that year was all the change over going on, in some & not others.

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I had the same problem with mine and i just pulled the main vaccume res apart and it was stock full of **** try that and it will help

Posted on Jun 01, 2009

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O.K sorry for some reason I thought heading was wrong and we were dealing with a full size chevrolet. Thanks for clearing that up.
Anyway, with that said, there could be a few items that would cause that. Have you noticed or do you see black soot from tailpipe at all? Have you pulled any spark plugs to see how they are burning? In the long run, it usually worth it, after you check those things, to pay to have it scanned for fault codes, and go from there. With that said, a faulty oxygen sensor will cause poor gas mileage. About ($20) at parts store.

Posted on Mar 05, 2009

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If it a carb not tb there is a couple set screws on the carb. run at 700 rpm or idel u need to put a vacum gauge on trying to get the high vacum out of it. on the carb to set the vacum what kind of carb is it these set screws control fuel and air flow when adjusted right. should be better gas saver question is 2 b or 4b carb

Posted on Mar 05, 2009

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