Too funny – perhaps no tuning at all then.

Regarding the Speedometer …

I rarely work with an OEM vehicle, so I am not certain which of several options would work for you. You also have an EBCM (ABS) on the CanBus network to consider – and not upset.

First, confirm with a GPS device that the Speedometer display is accurate or inaccurate – there is often a small compensation factor built in. If inaccurate, calculate the percentage of error (likely 3.5%).

If the Speedometer reads slow, then you will decrease the values below (H0105 and / or H0136) by the percentage error. If the Speedometer reads fast, then you will increase the values below (H0105 and / or H0136) by the percentage error. In your case it will either be accurate (or very close), or a little slow.

ECM – adjust H0105 (ECM pulses / mile)

TCM – adjust H0136 (Tire revs / mile)

You may only need to adjust one of these, or you may need to adjust both of these – to have all modules work together correctly.