MembersPage/FPhil (2008-08-26 15:44:19)

3.5 years ago (!) when I first bought the VEMS 3.3, I had some project for my Volvo 850.

Since then I had a Maserati biturbo and so I was more involved during my spare time with mechanics than with electronics or software. Hopefully the car is 200km from where I live !


Trigger

This biturbo has an odd fire engine

R(26-08-08): 2 VR, see the ESjaavik's Maserati page. "Bizarre" in a sense that this case is not (yet?)handled by Vems.

so that the distributorless biturbos produced at the end were more easily equiped by Maserati with 2 ECUS, each one dealing with an 1/2 engine which is then 3 cylinders even fire.

Recently I aimed to use Vems to measure C0% at idle in order to fine tune the A/F potentiometer set on the Weber injection ECU.

My first issue is that I did not get the good O2 percentage for the free air test !

After you measure connection (including that you have +12V on heater+), you need to calibrate: