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PCM Diagnostics & Tuning
Surging question

PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Surging question

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Jan 3, 2007 | 12:30 PM

#1

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From: Vestal NY

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Surging question

I have been dealing with surging issues for the last three years. The car surges after a cold start, and backing up, etc. Back then I was told to drill the hole bigger in the throttle blade which helped a little, but it's still a problem. I dont have any tuners in my immediate area, so.... should I drill the hole a little bigger?? ...or is there anything else I can do manually until I can get it tuned out??

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Jan 3, 2007 | 12:41 PM

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From: Watertown, NY

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id get the tune

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Jan 4, 2007 | 10:55 AM

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From: Ridgecrest, CA

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You could try drilling a second (smaller) hole.

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Jan 4, 2007 | 11:02 AM

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From: Lawrenceville, GA

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IMO, I would wait to get it corrected in the tune.

Bill

Chug! Chug! Chug!

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Jan 4, 2007 | 11:44 AM

#5

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From: Sunny London, UK

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Desired Airflow / RAF is your start point.
Basically open the IAC some more, plus logging etc to make sure all is well.

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