Erratic Idle & Miss

Discussion in 'General Motoring' started by Virpil, Jul 24, 2004.

  1. Virpil

    Virpil Guest

    Hello All:

    New to the group, but not Hondas :).

    I have a '93 Accord EX that has lost 25% of its gas mileage and has a
    varying idle when in park or neutral. I've replaced the spark plugs, and
    ignition coil (because it ohmed bad) but the problem is still there. I
    suspect it might be vacuum hoses.

    I also read the EGR (Engine Gas Return) causes bad gas mileage. I'm thinking
    of replacing all of the vacuum hoses as this car still has the OEM hoses
    with over 160K miles.

    Any suggestions on a remedy or where I can get a complete set of OEM hoses
    would be greatly appreciated.

    Virpil, Jul 24, 2004
  2. Virpil

    Caroline Guest

    How many miles and years are on the PCV valve?

    A malfunctioning PCV valve may cause the gas mileage to decrease significantly.
    Caroline, Jul 24, 2004
  3. Virpil

    Jim Yanik Guest

    Could be bad plug wires,or worn distributor cap.
    Jim Yanik, Jul 24, 2004
  4. Virpil

    Flyboy Guest

    Thanks for your suggestions.

    I replaced the PCV valve about 2 months ago. I've thought of replacing the
    distributor and wires next, but wanted some input before I spend the money.

    I also jiggled the vacuum hoses and it seemed to temporarily fix the high
    and erratic idle. I drove the car today and it's back.

    I'm afraid of replacing everything and spending $$ on things I may not need.
    But I do believe I will buy new wires and distributor cap & rotor.

    Thanks again!
    Flyboy, Jul 25, 2004
  5. Virpil

    E. Meyer Guest

    If wiggling the vacuum hoses temporarily fixed it, you found your problem.
    You have a vacuum leak. Replace the old hoses and look carefully for cracks
    in the mounting points for the hoses.
    E. Meyer, Jul 25, 2004
  6. Virpil

    Flyboy Guest

    That's what I thought. I called around to see if the hoses are sold in a
    kit: I've been told no (at least by the parts stores). I read in the manual
    you must be careful about replacing the hoses due to certain thicknesses and
    pressures. That's why I was hoping there would be a kit.

    Any ideas? Or can I just use basic rubber hoses sold by the foot at the
    parts stores? I like the OE hoses as they are numbered which matches the
    repair book I purchased.

    Any insight or help would be greatly appreciated.

    Thanks everyone!
    Flyboy, Jul 25, 2004
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.