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P01 1253017

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Old Nov 24, 2025 | 11:37 AM
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Default P01 1253017

Background. i have a P01 1253017 in a 1999 C5 FRC and I have HP Tuners 5.2.3 (the latest version) I am swapping my LS6 to the LS6 to the TPIS (it has the 90mm snout) and a Tony Mamo LS2 90MM Throttle Body.

I cannot see in HP Tuners under General -> Electronic Throttle tab any button for "scaler" I only see "Desired Throttle Area" with Normal and Alternate. The Normal tab has Rows 0-100 with values.

Where is my Scaler button to change:
ETC Area Scalar > Normal: 0.0177 (scales ~85% for 90mm vs. 78mm area).
ETC Area Scalar > Normal .0320

Any help?
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Old Nov 27, 2025 | 09:12 AM
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The "scaler" button you are looking for has been merged into the "Desired Throttle Area" tables themselves, and you need to adjust the values within those tables directly rather than using a single scalar value input field.
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Old Dec 2, 2025 | 11:36 AM
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Originally Posted by L92 Goat
Background. i have a P01 1253017 in a 1999 C5 FRC and I have HP Tuners 5.2.3 (the latest version) I am swapping my LS6 to the LS6 to the TPIS (it has the 90mm snout) and a Tony Mamo LS2 90MM Throttle Body.

I cannot see in HP Tuners under General -> Electronic Throttle tab any button for "scaler" I only see "Desired Throttle Area" with Normal and Alternate. The Normal tab has Rows 0-100 with values.

Where is my Scaler button to change:
ETC Area Scalar > Normal: 0.0177 (scales ~85% for 90mm vs. 78mm area).
ETC Area Scalar > Normal .0320

Any help?
That's because it's under Engine / Idle / Airflow and it's just a box on the left hand side ETC Area Scalar.



Originally Posted by SoulH
The "scaler" button you are looking for has been merged into the "Desired Throttle Area" tables themselves, and you need to adjust the values within those tables directly rather than using a single scalar value input field.
NO.
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