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Old 02-18-2019, 01:41 PM   #11
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Originally Posted by dubbleanus View Post
I'm trying to fix this issue too, but mine has thrown misfire codes. I have sprayed the throttle body out, checked vacuum lines for damage and reconnected them, and I've sprayed cleaner to try to detect vacuum leaks. I am at a loss.
You'd think that after seeing a code specifically directing you to a misfire, you'd start with the ignition, but at least now you've ruled out the intake...

Check your spark plugs, genius. Also, this thread is 9 years old.
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Old 02-28-2019, 06:15 PM   #12
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Oh hahahahaha, I'm smart enough to do maintenance. Genius. You'd think that if someone failed to do maintenance that they probably wouldn't even bother coming here. Oooh, this thread is 9 years old, that has nothing to do with the subject. Genius.
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Old 02-28-2019, 06:19 PM   #13
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SO, I came to find my EGR was the problem with my cold start rough idle. Hope this helps anyone else.
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Old 08-06-2019, 09:42 AM   #14
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We are having cold start idle hunting up and down to 1500 RPM in the hot summer. It is better once it warms up but still wanders from 700 to 900.

Is this also probably the EGR, how did you test yours?

I've not looked at it yet, it has 90 K miles and we plan to do plugs, air filter and clean the throttle body. This is our automatic car.
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