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I’ve noticed - when I start my engine, my car idles low to high between 3rpm-1rpm. It goes back and forth for about 5-10 seconds before everything mellows and stays in the 1rpm range. Is this normal? I cut off my resonator/muffler and now I hear all those new noises I didn’t hear before when it would idle like this. Not sure if it’s just my engine warming up and parts starting to move or something else. Any ideas?
 

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Registered
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I’ve noticed - when I start my engine, my car idles low to high between 3rpm-1rpm. It goes back and forth for about 5-10 seconds before everything mellows and stays in the 1rpm range. Is this normal? I cut off my resonator/muffler and now I hear all those new noises I didn’t hear before when it would idle like this. Not sure if it’s just my engine warming up and parts starting to move or something else. Any ideas?
have you changed your purge valve?


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