Changing TPMS value for Alfa 4C
Posted: 21 Feb 2021, 15:32
My 4C is used on track with race tyres as well as on the road with ordinary tyres and each type requires different tyre pressures - the race tyre pressures are lower than the road ones when cold but warm up to a higher temperature.
I don’t want to switch off TPMS but would like to be able to set a lower pressure for when the warning light comes on.
Is the warning light threshold set in the ‘front/rear pressure reference’ parameter of the TPMS ECU and if so should I set the required pressure for when I want the warning light to come on, or the normal running pressure (so that the ECU calculates a lower pressure as a percentage of the normal pressure).
Another parameter allows the pressure reference to be set when warm - I assume the parameter for ‘pressure reference’ (without including the word ‘warm’) is the reference when cold?
I don’t want to switch off TPMS but would like to be able to set a lower pressure for when the warning light comes on.
Is the warning light threshold set in the ‘front/rear pressure reference’ parameter of the TPMS ECU and if so should I set the required pressure for when I want the warning light to come on, or the normal running pressure (so that the ECU calculates a lower pressure as a percentage of the normal pressure).
Another parameter allows the pressure reference to be set when warm - I assume the parameter for ‘pressure reference’ (without including the word ‘warm’) is the reference when cold?