Thread: 74mm Throttle Body, surging idle
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Old Jun 17, 2013 | 04:11 PM
  #104 (permalink)  
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onehundred80
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Default Re: 74mm Throttle Body, surging idle
Originally Posted by BoilerUpXFire
Based on my personal experience, and that of several others in this thread, I would try to just put some miles on it before messing with everything again, if you feel you installed it correctly. Several of us have simply needed to let time pass and the cars ECU to adjust to the new part. That is the only way I can explain it as I did every test in the book on mine, no vacuum leaks, no nothing and it was surging. I drove it a few hundred miles and have not had any trouble since.

Just a thought...
It is always puzzling to me when I see people with problems on the change to the 74mm TB. I did it along with the larger air box and intakes and had no problems at all, I did not even notice an adjustment period or a hiccup. There must be an explanation though, is it because the air is insufficient without the air box and intakes? I thought everyone was changing the whole set up.

I think that the changes are quite subtle anyway, it took the tune to see a real difference and that definitely took a couple days of driving to feel the full benefit.
 
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