[gummr]

hey guys ive had the car running and it runs well but i havent been able to run a closed loop due to my lambda sensor not turning on anymore.. i had the relay for my fan and lambda on s1 and s2 but those connections are not switching anymore i thought the mosfets were broken due to the inductive voltage from the coil but ive checked the speeduino and im not getting 5 volts on pin 7 and pin 6 does anyone know anything about this happening?

[jonbill]

Hi, which speeduino board and which firmware version?