Question about 2001 Toyota Echo

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My 2001 toyota echo is cutting out bad I just changed the cat and both o2 sencers and spark plugs and its still doing it help please

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Try replacing the spark plug wires if you did not change them when you did the plugs. It is very important that you pull one and only one spark plug wire at a time to keep them in the correct order or your car will misfire. You should change your fuel filter every 30k miles and they are usually about $20. Try the wires first and see what happens.

Posted on May 13, 2010

  • jfgoudy Sep 15, 2010

    The Echo does not have spark plug wires, it is coil over plug. The Echo's fuel filter is located in the tank - it is very difficult/expensive to replace and is supposidly lifetime.

    You've done the important things, but check the fuel system (ie a plugged injector). You can also check if your fuel pump (or unlikely your filter) is giving you trouble by having the fuel rail pressure checked. You post was 4 months ago - was it ever resolved?



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Hi, this is very normal the chances are your O2 sensors where ok and it was just the cat causing the problem, if the cat is giving the wrong gasses out then this will cause the O2 sensor to seem as if they are faulty, so the warning you get is bad O2 sensors but the fault may well have just been the cat, get the cat changed and you should find you will have no further problems.
Plus as you have changed the sensors then this would rule out them causing you problems in the near future.

once the cat has been sorted the sensors will pick up the correct mixture from the cat and this will then stop the warning lights coming on and it will also make your car run a lot smoother and use less fuel

let me know if you need further assistance ok

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What is required for a 2001 toyota echo tune up?

I also have a Echo and would suggest:
Air filter, spark plugs. If it is still sluggish I would then replace the upstream 02 sensor. The fuel filter is apparently lifetime so it should be okay.

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