HI,
I change the os on cad 2002 6.0.
from gas to fuel flex but i have the P0155 heater performance low on the r and l sensors.
tested, 16 ohms, 12v, good signal, all is fine but ecm say no.
i can't deactivate the mil," Master DTC List: Tampering with emissions control devices can be illegal"
road test is perfect, fuel trim match, o2 signal good... alcool blend 20%
below hpt tune, the stock and the FF, they are for P01 ecm.
thanks for help.
avalanche e85 6.0.hptescalade2002 essence.hpt