I replaced my 185F (82C) tsat with a 176F (80C) version and made the VFC mod just before my car was due for smog check. My car runs a couple of 'notches' cooler than before but it certainly didn't make any difference in my smog results.

RPM --- HC(ppm) ---- CO(%) ---- CO2(%) ---- O2(%)
650 ------ 2 --------- 0.00 --------- 5 -------- 1.9
2450 ----- 3 --------- 0.00 --------- 8 -------- 1.8

So put in the coldest tsat you can find and don't worry about it!

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Regards . . . . JimF
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'94 S500 Cpe

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