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    My Mitsubishi Magna wagon, keeps missing and I am wanting to diagnose the problem...

    Mitsubishi Mitsubishi Advice Mitsubishi Magna Mitsubishi Magna Advice

    Need some help please in regards to my car. It's a Mitsubishi Magna Wagon automatic FWD. It seems to "miss" a lot. It can happen at any time; sitting at traffic lights, accelerating, going up a hill, going on a flat road. It's just constant. I have no idea what's causing it. It's now getting embarrassing whenever I have people in the car. I love my Magna and need it to last for many more years. It's got 280,000km on it.

    Answered by CarsGuide
    14 August 2022
    David Morley

    Before you even start replacing bits and pieces on a hunch, have the car electronically scanned. That will often tell you precisely what’s wrong with the car, and you can go from there, replacing only the non-functioning parts rather than a heap of components that are still working fine.

    Beyond that, start with the basics. The most likely cause of an intermittent miss like the one you’ve described is a problem with the ignition system. Sometimes, something as simple as a change of spark plugs will fix the problem, and that’s especially so because that electronic scan we were talking about often won’t detect a dead spark plug.

    From there, work your way through to the ignition leads and coils (a coil with a small crack in its plastic body can lead to a miss like this one). If all that checks out, you then need to start looking at the fuel delivery in terms of filters and pump pressure. This is all first-principle stuff for mechanics, but a modern car’s onboard diagnostics are so good, that a scan is definitely the first place to start.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
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