Dan151

does the ECU have to be reset on my 83' 944 if i replace the 02 sensor?

M758

The ECU (DME we call it) is too dumb to know if the O2 Sensor is even in the car. If it gets a single it will use it. If it does not get a n O2 single the car will run just fine. Emissions may not work perfect and it may use more fuel, but the car will still make power.

So in short No.

krystar

what joe said. single=signal

i don't even have the o2 sensor hooked up on my car...and it runs just fine

Dan151

haha thanks guys!

Rogue_Ant

Just to confirm - the DME does not have any non-volatile memory. So there is no need to 'reset' anything. The DME is automatically 'reset' each time you turn off the car.


-Rogue