hi guys ı have a same problem with Bills86e
my car is overheating it not open fan ı have a diy nextion obd car lcd ı maked it
ı can allow engine parameters usually engine temp at 95 celcius open aux fan
but simetime it not open so ı saw engine temp 101,102
I immediately understand that the fan is not working
what can ı do solve for my problem
can ı bypass ecm cancel so direct relay
or what is what is your suggestion
ı first buyed my car it has a this problem but ı dont know it after
ı changed my engine headgasget
( after changed it did overheating like a joke
we tested pressure in radiator cap radiator down leak water after ı changed radiator
problem is solved after 1 years ı living same problem
((( please help me