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  1. G

    02 Protege with Rough/Dying Idle and P0302 + P0171 Codes

    I've already checked the big intake hose. (Actually had it replaced less than a year ago, so it should be good.) I haven't checked the brake booster hose though, I'll have a look at that tomorrow.
  2. G

    02 Protege with Rough/Dying Idle and P0302 + P0171 Codes

    No, it's less noticeable from inside the car when it's in neutral, but the engine does not behave any different.
  3. G

    02 Protege with Rough/Dying Idle and P0302 + P0171 Codes

    Hello everyone, My father and I recently replaced the head gasket on my 2002 Mazda Protege DX (2.0L Engine). Since then, I have had a rough idle that I simply cannot get rid of. The car only has problems when at a complete stop or crawl speed (like moving up a car length in an intersection)...
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