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I have a starting problem with my 1999 Honda accord, 1 in every 50 starts for example the car will turn over but fails to start, I repeatedly turn the key then the crank slows down but still doesn't fire. it happened today at about 12 o clock gone out now and its started first time any ideas what this could be? thanks

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An intermittant like you have described can be an absolute nightmare to track down. A visual inspection of the engine management system for loom damage or corrosion, contamination or oiling of plugs. You can connect a data logger onto the vehicle to record any mis-function when it does not start. A OEM scanner may also reveal the fault. Main suspects for me would be crankshaft sensor, camshaft sensor, or engine management fuses or relays.

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Could have an idle air control valve Issue, if valve sticks open will cause a big vacuum leak which would cause a no start. Next time it happens try taping litely on valve if starts replace valve

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  • You could really flesh out your answer by providing basic information about what you are talking about and how one would find the IAC on any given engine.
    – Pᴀᴜʟsᴛᴇʀ2 ♦
    Feb 19, 2015 at 19:50
  • Idle control valve is located on the back side of intake manifold by the throttle body or you could simply go to
    – Fern
    Feb 25, 2015 at 3:33

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