Quote:
Originally Posted by MattF407
If you mean, does the idle worsen the longer i drive the car? No, I drive varied commutes & weekend trips and have noticed no correlation between length of time and worsening of idle. I have also never observed correlations between spirited driving or running the AC and a worsening of idle either.
In my case, I do not believe that this is 100% tune related yet. If I do manage to resolve it, I will report back with my findings.
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Another guy with headers had the same issue and mentioned that unplugging the rear O2 sensors fixed it. I can confirm this fixes my idle issue too, but I don’t know how else it affects the car so I have them plugged in.