UMI TB and surging
02-03-2008, 06:49 PM
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UMI TB and surging Curious if any of you guys had any problems with the UMI 90mm TB's?After adding that and a fast intake the car surges and the idle hangs.It has a SD tune from a good tuner and thats not the issue.It also did it before the tune but not as bad.If anyone has any thoughts I would appreciate it.
02-04-2008, 06:44 PM
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I've got a UMI 90mm and have never had any issues with it. It is tuned with a MAF though not SD. What intake and TB did you have on it before? If you went from a 78mm tb and intake then the tune will change and cause issues. You should have it re-tuned with the new stuff on it. Besides you should try and take full advantage of your new setup!