I performed the check of the lambda as per
benzmac instructions.(lambda you can check)
my readings were as follows.25 low 31 high
avg of 28.
Should I start with an adjustment of the lambda or change the o2 sensor and check again? this car has 103000 on it and I dont know if the o2 sens was ever been changed.
Also what size of wrench is needed for the o2 sens? I only go to 19mm at this time.
Thanks again


Paul
92 300TE 4MATIC

From the readings posted, the basic fuel adjustment is on the rich side. This will allow the car to perform better durning warm-up & at full throttle, it might reduce the fuel mileage. Sounds like the O2 sensor is working fine.

Adjusted the fuel mixture to a avg. reading
of 51. idle is smoother, it used to stumble
then accelerate with a 30 to 40 second cycle. Thanks M.B.DOC & BENZMAC



Paul