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Granville Tuner Matter Resolved. Thanks For All Your Support


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Good to see someone taking it to these ar5eholes in the industry that gouge some customers and then still have their sycophant fanboys suggesting they are fantastic.

Only one way to make them hurt and that is drag them to small claims.

Know your subject and make them justify it on the record, then name and shame.

But rule number one: always get a written quote.

Good luck.

Hmm I have a suspicion I may know this shop as I got some work done to my car at a shop early in the year and they broke things and lied about the power output etc, please PM me name of the shop.

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    • Ohh even easier.   Go dial up 700rpm on the hand controller. Rip off the TPS plug, wait till the idle drops and then adjust the IACV screw so it's just a tad below the target on the hand controller (say 650rpm), plug the TPS back in and idle will climb back to target. Done.
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